Moisture In Cinder Block Walls

Painting a cinder block breeze brick wall is a long laborious task; with aching back, arms and hands. When you have a basement, you will either have a concrete foundation or cinder block foundation. Labor Cost. Well, Spray foam insulation traps water and moisture in the block wall or between the wall and the foam. moisture issues were more severe shortly after completion of construction, before construction moisture dried, than after a year or two. Even if your walls (either poured concrete or concrete block) appear dry to the touch, they can still wick a significant amount of moisture into the basement through microscopic capillary action. However, if your crawl space walls are built with concrete blocks, moisture moves up through the open cavities and into the space anyway. Stucco Damaged by Surface Moisture. Clear plastic provides high visibility for foundation inspection by pest control contractors. Since the block are probably not "cinder block" (very rare for the last 40 years) real cinder block could also contain many different salts since they were made from waste materials that are not economical now due to the availability of. Effectively seals open cores along the top of concrete block walls. Holes in the Wall. A dehumidifier will help to reduce air borne moisture and will also help to reduce the musty basement smell. At lower or higher environmental humidity, the block will shrink or expand reversibly. Mass walls behave differently from other structural systems, such as wood or steel. Moisture is not a problem with concrete since it works well below water. Moisture wicking through blocks causes the paint to peel There is no denying it. MOISTURE BARRIER 8" Concrete Blocks--·~ 10 perms. The evaporation of moisture through the walls and the floor slab of a basement can be reduced by using a paint designed to adhere under moist conditions. Some of the blocks are crumbling, but the problem is not deep, less than an inch. Methods to prevent water penetration into masonry walls are discussed. There is also a risk of rainwater penetration through any part of the basement wall that is above ground level. It is sometimes called a concrete masonry unit (CMU). A moisture meter is an essential instrument used in many industries to detect moisture content in materials. gap between the plaster and cinder blocks, so spraying insulation in there won’t work. See "Waterproofing". 12 Block – Cinder Block Planter With Flowers and Common Plants. With the block basement design, the homeowner buys pre-poured blocks of concrete and stacks and them to build the walls. This is the basic rainscreen principle wall. Homes with tall, unsupported exterior walls or high ceilings, e. The porosity of cement blocks make it a key area for mold growth. An impervious barrier on the exterior wall surface can prevent moisture entry. For example, an 8x8x16-in. Natural Thin Stone veneer can be applied directly to any new or existing concrete block or brick surface. The original cinder blocks had crumbled, and no longer were supporting the concrete pad adequately. Exterior wall materials ” says that “Exteriors walls constructed of concrete masonry units (CMU) shall have flashing, weep ropes, sealants and caulking which prevent the accumulation of water within the wall assembly and provide a means for draining water that enters the assembly to the exterior so as to prevent moisture from. The Mini can be used to determine if the fabrics of a building are in a dry, borderline or damp condition. for concrete walls. CIP 28 - Concrete Slab Moisture WHAT is the Problem? Concrete slab moisture can cause problems with the adhesion of floor-covering material, such as tile, sheet flooring, or carpet and bond-related failures of non-breathable floor coatings. Generally, damp proofing keeps moisture out of a building where vapor barriers keep interior moisture from getting into walls. Concrete masonry block. Then, Apply The Surface Bonding Cement. A concrete sealing primer prevents moisture from leaching out of the blocks and weakening the paint. Less Volatility in Material Prices. Steve asks, “I built a retaining wall last year, and the blocks are turning white. If your foundation walls appear in any way similar to the images above, you have visual confirmation that your concrete block / cinder block walls either have water trapped inside the blocks or moisture wicking through them. A Solid Footing. Remove all loose and unstable concrete or masonry from the repair area. Exterior walls in Florida buildings are typically simple concrete block walls covered with stucco. Masonry Installation Tips. Woodworking industries, such as furniture makers, use wood moisture meters to insure a quality product. Therefore, it's advisable to have a floor tested for moisture content prior to installing flooring or moisture barriers. My Inteiror Plan: I plan on removing all the plaster walls and ceilings in each room. This is the basic rainscreen principle wall. concrete block insulation Insulated concrete blocks can accommodate many walls in a home. In a lot if cases, the problem can be made worse by trying to fix a small crack such as this. I know something about retaining walls, specifically structural problems and stuff, but not that much about moisture barriers. Walls must be free from all oxidation and debris. A concrete block is one of several precast concrete products used in construction. WallCap Block Wall Sealing Benefits. It is sometimes called a concrete masonry unit (CMU). Seam tape all seams before coating. The block has (had) a ~1/2" skim coat inside and out, but most of it is gone on the inside and it's crumbling next to the door on the outside (look below the hole). The most common method is to take a bitumen-based coating and apply it to the concrete all the way from the footing to grade before backfilling. Generally vermiculite will increase the total insulating value of a block wall by 35% to 60% depending upon the properties of the concrete block. After doing some research, Farfaglia's short answer was: "I doubt whether there is any issue to worry about. Endur-O-Seal USA, Inc. Whether you're building a retaining wall or just need some extra privacy, a cinder block wall is an affordable way to get the job done. While seepage usually causes damage to mortar joints, foundation drainage typically causes shifting and wall movement. If moisture appears on the wall side of the plastic, it’s a leak; if moisture is on the outside, it’s a condensation problem. Use a masonry sealer and follow the manufacturer’s directions on how many layers to apply and when. The concrete or concrete block basement wall still presents problems. Premium penetrating Concrete Sealants, Membrane Sealers, Concrete Block Sealers, Repair Epoxies, Coatings, Concrete Cleaners and Efflorescence Cleaners that are user-friendly and environmentally safe. A sump pump moves water out of your basement. In some cases, this is not visible on the interior face of the foundation, but the. SBC 'stucco' with horse hair and calcium carbonate was used hundreds of years ago to build huge water storage cisterns. According to concrete floor specialist Peter Craig, the most important element in the design and construction of a concrete subfloor where a moisture-sensitive finish is to be applied is an. If the water in the blocks cannot escape, the walls will seep because the cinder-blocks are porous and allow moisture to wick through them. There have been some issues with mold/damp drywall in that corner for quite a while. Condensation within and behind walls is a less obvious but equally damaging factor. Efflorescence is often described as dissolvable salts in moisture that are transported through porous materials such as concrete, brick, block and stone through capillary action. The poly on the back side of the wall only serves to prevent contact between the concrete and the insulation/studs. The vapour barrier is situated in relation to the insulation, and always to the warm side of the wall. Concrete block is a porous material and must be waterproofed to prevent seepage. The dry-stack construction technique allows the incidental water to escape by flowing around the blocks and out the. First, you must determine if you are working with true cinder blocks or cement blocks, as there is a difference in their composition. There is no moisture or water at all, no cracks or crumbling, just the pops. walls use a vapor barrier and atleast 1 1/2" framing. When you have a basement, you will either have a concrete foundation or cinder block foundation. One or more sections of your foundation wall are bowing inward or collapsing from exterior forces such as water and tree roots. Fox Blocks provide a solid continuous monolithic concrete wall with a perm rating of less than 1. Place a bond beam or course of solid cap blocks on top of all concrete masonry foundation walls to ensure that no open cores are left exposed. This wall is absorbing so much moisture that it is leaking into the beauty salon and causing considerable. The wet, humid conditions that contribute to mold growth in basements are often the result of moisture vapor coming through the concrete floor or wall due to a high water table or saturated soils. Usually, it is made using cinder blocks that are reinforced with the use of steel components and concrete. This protection may take several forms and is normally called damp-proofing. For block wall installation, contact the number one cinder block wall contractors in Phoenix. Discuss flashing and other proper masonry installation strategies to manage moisture in a masonry wall ; Describe water repellent admixture advances and uses in concrete block and mortar that help control moisture and meet green building codes. Use a masonry sealer and follow the manufacturer’s directions on how many layers to apply and when. Unlike the house itself, which has a pier foundation and a wood frame, the garage is a cinder block building on a concrete slab. Successful design for moisture mitigaThe major objective in designing dry concrete ma-sonry walls is to keep water from entering or penetrating the wall. The walls are made of cinder blocks and can be constructed in a fraction of the time it takes to create a poured concrete wall. The ratio of water to cement in your batch of concrete remains one of the most influential factors as to how long a concrete slab needs to cure and dry. Covering the walls is only half the battle. It was constructed by the owner in the mid 1950s using cinder blocks, and the interior walls are lath and plaster. These block are less than fifteen years old and the builder assured me they'd last at least 100 years. Typical white efflorescent salts on brick and block masonry 1 Based on a technical paper written by Michael Merrigan, P. If moisture appears on the wall side of the plastic, it’s a leak; if moisture is on the outside, it’s a condensation problem. The foam will keep moisture from entering the finished space and keep it against the block/concrete wall. Tips for damp proofing & leak repair: Preparation is key to any project. Cinder block walls in garages or other areas may develop mold growth if moisture is present for a prolonged period of time. moisture issues were more severe shortly after completion of construction, before construction moisture dried, than after a year or two. QUIKRETE® Heavy Duty Masonry Coating is designed for. Methods to prevent water penetration into masonry walls are discussed. Likewise, it will not be wicked back to the exterior carrying soluble salts that can cause efflorescence at the joints on the wall exterior. As it is, the blocks are likely just continually absorbing moisture and depositing it into your walls. 0 mils DFT per coat Exterior - Apply one coat TNEMEC PRIMAPELLH2O Exterior Block at 125 to 150 square feet for all exterior wall surfaces or TNEME-CRETE Exterior masonry coating. Discuss flashing and other proper masonry installation strategies to manage moisture in a masonry wall ; Describe water repellent admixture advances and uses in concrete block and mortar that help control moisture and meet green building codes. Seal any cracks and if you need to consult with a specialist, I would. ) Condensation from the warm interior air hitting the cold concrete wall. This increases the vapor pressure of any moisture within the masonry, and unless you use vapor retardent wall materials it will dry toward the interior. From the chart above, a cool basement at 10C/50F which reaches a humidity level a level of 90% in the wall cavity with vapor barrier would lead to a wood moisture content of 21%. Coating the exterior of wall systems when excessive moisture exists can lead to unfavorable appearance, patches of efflorescence, and blistering and peeling of the coating. Concrete block especially wicks moisture, and that damp spot below grade will simply migrate to above the vapor barrier. wall, moisture control relies on gravity and an unobstructed 2-inch airspace to get water down to the flashing and the weeps. A concrete sealing primer prevents moisture from leaching out of the blocks and weakening the paint. Exterior walls may use a variety of materials, from wooden siding, to vinyl, aluminum, brick, and stone. If your foundation walls appear in any way similar to the images above, you have visual confirmation that your concrete block / cinder block walls either have water trapped inside the blocks or moisture wicking through them. Efflorescence is often described as dissolvable salts in moisture that are transported through porous materials such as concrete, brick, block and stone through capillary action. House bricks placed onto damp ground behave in the same way as this sponge,. In this post I will cover the reasons why block foundations leak and the how to fix a leaking cinder block foundation wall. WallCap Block Wall Sealing Benefits. Some of the blocks are crumbling, but the problem is not deep, less than an inch. Upon removal of the old flooring which was Linoleum and carpet our flooring installer notified us that the moisture reading in our slab was to high to allow for Laminate, even with a moisture barrier installed. Labor Cost. The best and easiest way to make sure your cinder blocks will not leak is to take preventive actions before. Using a pre-designed product to protect the ends of beams from damp has the potential to simplify the installation of a block and beam floor, and should reduce the amount of. Walls exposed to the outdoors have a greater chance of thermal expansion and contraction, and retainage of moisture, than walls located indoors or in protected areas. In block walls, the lintel is likely to be made of the same material as the blocks. But not for cinder block walls, just to be clear. The problem comes with the chemistry and compounds created by the exposure to alternating levels of moisture and wetting and drying. Natural Thin Stone veneer can be applied directly to any new or existing concrete block or brick surface. They come in many sizes, colors and styles, making them ideal for a wide variety of projects. gap between the plaster and cinder blocks, so spraying insulation in there won’t work. In low-rise structures, these will typically be bearing walls built on a concrete slab. It is desirable for all dimensions of a block wall to be divisable by 225mm. This is a common problem. An information series from the national authority on concrete masonry technology NCMA TEK 6-11A 1 INSULATING CONCRETE MASONRY WALLS INTRODUCTION The variety of concrete masonry wall constructions provides for a number of insulating strategies, including: interior insulation, insulated cavities, insulation inserts, foamed-in-place insulation, granular fills in block core spaces, and exterior. These walls were executed with concrete blocks of 8 MPa and laying mortar trace 1:1:6. First the problem with going right on the block is you might get moisture penetrating the wall and we don't want that. 4) or C-331 (ref. Water that gets through the wall runs down the back of the plastic, into a drainage system in the floor. A concrete block is primarily used as a building material in the construction of walls. These concrete block walls are not your average 8"X16" block. As it is, the blocks are likely just continually absorbing moisture and depositing it into your walls. Concrete block walls tend to be more susceptible to water leaks. As the water locked inside the pores of the masonry unit begin to freeze it starts turning to ice and expands. There’s a less than 1-in. Less attention has been given to the control of moisture, air and heat flows. 625-in x 15. Posted on: as well as water buildup on the inside of concrete walls in an insulated, dehumidified basement. As it is, the blocks are likely just continually absorbing moisture and depositing it into your walls. There are a couple of simple tests that tell us a few things about how much vapor is coming out of our floor and a more difficult test that tells us more. First, you must determine if you are working with true cinder blocks or cement blocks, as there is a difference in their composition. The porosity of cement blocks make it a key area for mold growth. Wet a portion of the wall that you’ll be able to cover within 10 minutes and work on that section. Soil is almost always damp. 0 mils DFT per coat Exterior - Apply one coat TNEMEC PRIMAPELLH2O Exterior Block at 125 to 150 square feet for all exterior wall surfaces or TNEME-CRETE Exterior masonry coating. The original cinder blocks had crumbled, and no longer were supporting the concrete pad adequately. Homes with tall, unsupported exterior walls or high ceilings, e. The anatomy of a cinder-block / concrete block. It is desirable for all dimensions of a block wall to be divisable by 225mm. It's the default for any poured concrete wall below grade. Painting a cinder block breeze brick wall is a long laborious task; with aching back, arms and hands. MOISTURE BARRIER 8" Concrete Blocks--·~ 10 perms. After seven days, the concrete will be up to 90% of its ultimate strength and the framing of the house on top of the foundation walls can begin. Several factors may affect the cost of a block wall project and should be considered when estimating the approximate price. Swimming pool paint is not intended to stop leaks coming from the backside of the paint. Efflorescence is created as moisture passes through the porous concrete in of your basement walls and into your home. How to Build a Block Retaining Wall: I had an area on the side of my house that was a narrow path of flagstones and sloped down toward my neighbor's house. To do this, you can't just spread new concrete onto the old blocks like cake frosting. The walls are made of cinder blocks and can be constructed in a fraction of the time it takes to create a poured concrete wall. No water leaks in. How to Fix a Leaking Basement with a Concrete Block Foundation. Interior sealing of a block wall sealed in this way will develop a high concentration of moisture inside the wall itself if there is a water problem outside. In some cases, this is not visible on the interior face of the foundation, but the. Trying to get the paint worked into into the rough blocks, I kept thinking there has to be an easier way. The crawl space walls should have screened openings for ventilation. Prevents problems with moisture, pests & radon gas. Btw, you mentioned cinder block they are different to poured concrete foundation walls so what might be good for concrete walls isn't necessarily good for cinder block walls. It appears that moisture is pushing the paint off of the concrete - the paint can be peeled off in pieces the size of your fist. surface of the wall where the water evaporates, depositing the salts on the wall and generating the white powdery scum we know as efflorescence. The wet, humid conditions that contribute to mold growth in basements are often the result of moisture vapor coming through the concrete floor or wall due to a high water table or saturated soils. Efflorescence is also a big problem on block. Damp-proofing Concrete and Masonry 1 of 3 Whether new or old, concrete and masonry walls and structures, particularly basements, should be treated with a water-resistant coating to control the entry of water and moisture that will lead to deterioration and damage. Concrete slabs and floors can be excellent subfloor surfaces for tile and other floor coverings, but too much moisture in the concrete can cause problems with flooring installations. This house (pictures attached) is a 1960 concrete block wall home with what appears to be a poured concrete slab. There is no evidence of any sort of void or vapor barrier between the brick and cinder block nor is there a vapor barrier behind the cinder block. 0 mm per metre per 100°C. Inspector says the 4×8 isn’t stable enough for house. But on sites with slow-draining soils or high water tables, or where site drainage is unreliable, a waterproofing system designed to resist water under hydrostatic pressure will be needed. Thick, durable plastic won’t wear out or break. The architect should always attempt to design buildings using the nominal dimensions to the nearest half-block size to reduce waste and labor due to cut blocks. Moisture/water in walls can cause paint films to pop off even if they are breathable. A faulty DPC may cause moisture to rise by capillary action through the building materials like a sponge absorbs water. As the water locked inside the pores of the masonry unit begin to freeze it starts turning to ice and expands. Gardening Note: Toxins in Concrete Blocks and Concrete. Breeze block walls are common around your home, particularly in the basement, foundation or retaining walls. Moisture resistance is not necessarily absolute; it is usually defined by a specific test method, limits, and engineering tolerances. high, and 155/8 in. What is expected in the forest is not beneficial when it comes to your deck, basement exterior wall, or retaining wall. If you decide to us dry-lock from the inside you will need to take a grinder with a concrete cutting blade and cut a groove close to the concrete block in the floor all the way around the floor then chip out a small area about 2 or 3 inches deep so you can put a foundation water pump in the hole to pump out any water that collects there you. Normal Weight Half Concrete Block (Common: 8-in x 8-in x 8-in. We look forward to serving your needs in the near future. She had purchased a condo in an old brick building and her unit. Unlike the house itself, which has a pier foundation and a wood frame, the garage is a cinder block building on a concrete slab. In construction, the R-value is the measurement of a material's capacity to resist heat flow from one side to the other. Old stair step cracks in walls are less of a concern if grading around the exterior of the home has been changed. By George Giltner, Adv. Concrete Masonry Fire Resistance. Successful design for moisture mitigaThe major objective in designing dry concrete ma-sonry walls is to keep water from entering or penetrating the wall. Uses include: nursing homes, hospitals, vets, cool rooms, freezer rooms, toilet block, basements, car. The landlord says to cover them up during winter months and uncover them during the summer the walls sweat, the windows sweat, carpet sweat, creating mold. concrete block insulation Insulated concrete blocks can accommodate many walls in a home. Stains on cinder block fence I have a cinder block fence and on the outside wall which fall on the street there are stains most likely from water/rain sipping from the yard. The 2 most common ways stucco can be damaged by surface moisture is: 1) Improperly placed and adjusted irrigation sprinklers. Throughout the block stacking phase and at the completion, check that the wall has remained level. Upon removal of the old flooring which was Linoleum and carpet our flooring installer notified us that the moisture reading in our slab was to high to allow for Laminate, even with a moisture barrier installed. Prepare the surface by removing any dirt, loose mortar or efflorescence (white powdery substance). Apr 24, 2014 • By Matthew Stock. As Dave pointed out, the ideal way to stop leaks is to prevent them from getting through the foundation wall, and that means dealing with the OUTSIDE of. Rain -- especially wind-driven rain -- can also cause moisture problems in walls. Also, I hate to be "that guy," but it is more than likely concrete block, not "cinder block. 0 mils DFT per coat Exterior - Apply one coat TNEMEC PRIMAPELLH2O Exterior Block at 125 to 150 square feet for all exterior wall surfaces or TNEME-CRETE Exterior masonry coating. My house was built in the ’40s and has a cinder-block foundation. 1) It is important to make sure that the existing surface and wall are sound and without defects, and the surface has not been painted or sealed. 9cm] thick particle board. The concrete block walls are porous and so you’re not going to get a lot of thermal insulation. Can you help?”Those powdery white stains are likely caused by efflorescence. SBC 'stucco' with horse hair and calcium carbonate was used hundreds of years ago to build huge water storage cisterns. Methods to prevent water penetration into masonry walls are discussed. The moisture content at least 95% of the concrete block is decreasing. For block wall installation, contact the number one cinder block wall contractors in Phoenix. When applied to a block retaining wall, water repellent sealers will reduce surface water absorption by up to 85-95% and help to reduce deterioration, mold and mildew, and efflorescence. - Understand the best techniques and materials to specify for moisture control in masonry. This protection may take several forms and is normally called damp-proofing. I am planning on completely gutting the room to start, and rebuilding with solid foam insulation up against the block in between the 2X4 studs (laid flat against the block wall, which. 1000 Block – Cinder Block Planter and Vegetable Garden. A wet concrete floor can wick water into walls and molding, promoting mold growth. - Understand the advantages and disadvantages of various mortar collection devices for cavity wall and single-wythe construction. If your foundation walls appear in any way similar to the images above, you have visual confirmation that your concrete block / cinder block walls either have water trapped inside the blocks or moisture wicking through them. Find out just about everything you need to know by watching the video below. Spend time lifting stains with soap, trisodium phosphate, and other cleaners. See "Waterproofing". How to seal cinder blocks walls. Soak the concrete cinder block wall thoroughly with a hose to help the surface bonding cement adhere. Before applying the Surface Bonding Cement, dampen the surface of the block. You will not be disappointed. A concrete sealing primer prevents moisture from leaching out of the blocks and weakening the paint. The primary culprit for spalling brick damage, as it is with most building materials, is excessive amounts of water or moisture entering into the masonry system prior to a freeze. Thick, durable plastic won’t wear out or break. The SBC coating interlocks all the blocks into one integral wall unit by sandwiching the blocks on both sides with the SBC. the trick is to use the right approach and material. Moisture can move through underground cement in many ways. A bare floor and wall full-house basement that is wet onthe outside surface can contribute up to 5 gallons of moisture a day to the house - more than enough to cause condensation in the cooler basement. Monumental over-sized masonry units are available in Trenwyth Verastone, Verastone Plus, Trendstone, Trendstone Plus and Mesastone finishes. For a poured wall basement, a contractor pours concrete into the foundation framing to create a basement wall. To repair small cracks or holes in cinder block walls, you can use concrete. But in markets across the South, especially Florida, it's the way to build the first floor of almost all homes. The key to successfully insulating basement walls is selecting insulating materials that stop moisture movement and prevent mold growth. Discuss flashing and other proper masonry installation strategies to manage moisture in a masonry wall ; Describe water repellent admixture advances and uses in concrete block and mortar that help control moisture and meet green building codes. Interior insulation on top of this interior sealed wall could cause freezing problems within the concrete or between the inside the blocks. The block is essentially a Greenhouses For SaleGreenhouse Plans. The crawl space walls should have screened openings for ventilation. She had purchased a condo in an old brick building and her unit. To waterproof, strengthen, and preserve the overall appearance of your basement cinder block walls, seal the blocks permanently against moisture and efflorescence with RadonSeal Plus Penetrating Concrete Sealer. Tempshield® Reflective Block Wall Insulation Reflects Heat Block or concrete walls are common along the costal areas of the US and throughout Latin America. When the moisture carrying the salts reaches the surface, the air causes the moisture to evaporate which then leaves a white crystalline type of powdery material or a. A damp proof course installed on the perimeter walls will ensure ground moisture does not penetrate the structure. Using a pre-designed product to protect the ends of beams from damp has the potential to simplify the installation of a block and beam floor, and should reduce the amount of. sheet rock), but it’s possible. The easiest/fastest/cheapest solution to repairing the cinder block was using poured concrete and then painting the entire wall to mask the patch. Unlike the house itself, which has a pier foundation and a wood frame, the garage is a cinder block building on a concrete slab. ReCon Wall Systems ReCon, a leader in "big block/precast" retaining walls, offers 16"X48" (40cmX120cm), 1000–3000 pound (660–1500kg) blocks. Concrete and mortar must be cured at least 30 days at 75°F. Whether you're building a retaining wall or just need some extra privacy, a cinder block wall is an affordable way to get the job done. If moisture appears on the wall side of the plastic, it’s a leak; if moisture is on the outside, it’s a condensation problem. Bob explains the proper function and use of the moisture test, calcium chloride test, and pH test when pouring a concrete overlay or epoxy. Moisture/water in walls can cause paint films to pop off even if they are breathable. Warm air has more moisture in it than cold air. carbonization and the loss of moisture that occurs with time in a cement-based product. R-values are additive. In addition to the non-reversible shrinkage, concrete block also undergoes moisture cycle movements with wetting and drying as well as thermal expansion or contraction. The ratio of water to cement in your batch of concrete remains one of the most influential factors as to how long a concrete slab needs to cure and dry. There must be sufficient moisture in the wall to render the salts into a soluble solution There must be a path for the soluble salts to migrate through to the surface where the moisture can evaporate, thus depositing the salts which then crystallize and cause efflorescence. While seepage usually causes damage to mortar joints, foundation drainage typically causes shifting and wall movement. Moisture is not a problem with concrete since it works well below water. Hollow areas develop around the cracks on block walls as it separates from the block, then falls off – exposing the block. Sometimes this fills up the cavities of the blocks. The entire system is $3,000-$5,000 for a 20-by-20-foot basement room. Throughout the block stacking phase and at the completion, check that the wall has remained level. If these cracks are not sealed, moisture is sure to enter. R-value is usually between 2. Gardening Note: Toxins in Concrete Blocks and Concrete. - Understand moisture problems inherent within masonry construction. Using a pre-designed product to protect the ends of beams from damp has the potential to simplify the installation of a block and beam floor, and should reduce the amount of. A concrete stem wall can be built out of block, rod, and concrete, without the use of any mortar. Hollow areas develop around the cracks on block walls as it separates from the block, then falls off – exposing the block.  Concrete is like a sponge and will transfer moisture from wet areas to dry via capillary action. A crawl space has several disadvantages too: Crawl spaces are a source of moisture in a home providing an environment for mold, fungi, and insects that destroy wood framing. Natural Thin Stone veneer can be applied directly to any new or existing concrete block or brick surface. When brick wall masonry structure experiences one or more issues related to water penetration, then it would be. The moisture is able to get it, but has no way of drying up, which makes the perfect landing spot for mold spores to. Weep holes on the inside of the basement at the floor line allow the drainage of the blocks below the floating slab down to the drain tile. I have a desert landscape and just couple bushes, watering is done by the drip system 3 times a week, when the water dripping system start the ground barely gets wet. If you have questions for the best sealer for. Concrete block is a porous material and must be waterproofed to prevent seepage. The first occurs by loss of moisture from the block in the attempt to come to equilibrium with drier surroundings. Sometimes this fills up the cavities of the blocks. For instance if you have a material with an R-value of 12 attached to another. The moisture is able to get it, but has no way of drying up, which makes the perfect landing spot for mold spores to. Whether you're driving down the road or through a neighborhood and you notice a retaining wall that has large cracks in it, or is severely discolored, or one that has white calcium deposits from moisture covering the entire wall, you've got problems with moisture. A builder friend says it looks like someone tried to build a modern wall using old-school techniques. The moisture is able to get it, but has no way of drying up, which makes the perfect landing spot for mold spores to. Just one problem… when it rains, the bare concrete walls in the storage area get damp wet drenched. We added a layer of four-inch wide blocks to accomodate an eight-inch sandwich of concrete, insulation, and concrete around the satellite dish. External sources of concrete moisture can. My overall goal is to make the garage a functional workshop and to add a second floor or at least a mezzanine level to provide a place to store guests. At Regional Foundation Solutions , our solution to block foundation walls in a crawl space is the WallCap Block Wall System. These walls were executed with concrete blocks of 8 MPa and laying mortar trace 1:1:6. Painting a cinder block breeze brick wall is a long laborious task; with aching back, arms and hands. Using concrete block in construction significantly reduces cost in various ways. surface of the wall where the water evaporates, depositing the salts on the wall and generating the white powdery scum we know as efflorescence. To produce brick hectors of land, tons of wood and coal are wasted. As the water locked inside the pores of the masonry unit begin to freeze it starts turning to ice and expands. Just because it’s a cinder block wall it doesn’t mean you can just forget about it. On the inside, it has paint that's peeling. A concrete stem wall can be built out of block, rod, and concrete, without the use of any mortar. Once you've got your base set up, it just takes some finesse in. Gardening Note: Toxins in Concrete Blocks and Concrete. The next think you know, you have a wet basement. I would stick with concrete or pumice or cinder blocks for below grade construction basement walls. The entire system is $3,000-$5,000 for a 20-by-20-foot basement room. 625-in x 15. Just because it’s a cinder block wall it doesn’t mean you can just forget about it. The flowers inside the raised area are lush and colorful, and there are also palm trees and plants that make you think of a tropical location. Then, a base-coat of cement is applied,. It could be to help insulate the blocks or just to make them look nicer than what they do. The original cinder blocks had crumbled, and no longer were supporting the concrete pad adequately. This moisture has nowhere to go but UP, due to the capillary action (wicking) of moisture on a foundation. The block has (had) a ~1/2" skim coat inside and out, but most of it is gone on the inside and it's crumbling next to the door on the outside (look below the hole). Methods to prevent water penetration into masonry walls are discussed. The temperature & humidity of the cinder block is now very close to the indoor temperature & humidity- much warmer in winter than when it was outside the thermal boundary. The first step in creating an EIFS exterior is to glue a layer of EPS foam directly onto the sheathing of a house or commercial building. There is no evidence of any sort of void or vapor barrier between the brick and cinder block nor is there a vapor barrier behind the cinder block. Calculate the exterior face area of he wall you want to build and the face area of the side of the cinder block (add about 1/2 inch to length and 12 inch to width for mortar thickness). Basement design solutions must be submitted for consent as an alternative method – they are not covered by E2/AS1. Cinder blocks are classified as permeable to water = >10 perms. This vertical garden is the perfect idea for someone who is lacking. A customer called my handyman business. A damp proof course installed on the perimeter walls will ensure ground moisture does not penetrate the structure. Also, I hate to be "that guy," but it is more than likely concrete block, not "cinder block. A traditional EIFS exterior wall is comprised of EPS foam, fiberglass mesh and a cement-like stucco material. comes in 4 colors I believe and they used to have both oil and latex. Concrete retaining walls are becoming more and more popular these days due to the sheer versatility of in the types of concrete retaining walls that you can have. At the front of my building, a wing wall extends away from the building. Concrete Masonry Fire Resistance. A concrete block wall, if appropriately sealed, is also fairly maintenance free. For block wall installation, contact the number one cinder block wall contractors in Phoenix. A dehumidifier will help to reduce air borne moisture and will also help to reduce the musty basement smell. ReCon Wall Systems ReCon, a leader in "big block/precast" retaining walls, offers 16"X48" (40cmX120cm), 1000–3000 pound (660–1500kg) blocks. Sometimes this fills up the cavities of the blocks. So bauen Sie eine Cinder Block Wall, Cinder Block Projects - New Ideas. sheet rock), but it’s possible. Stains, paint deterioration, and rot are usual signs of moisture damage. painting block is an extremely common commercial/industrial finish process. In cavity walls, there will also be an inner lintel and this should have a DPC over it that will drain any moisture that gets into the cavity to the outside. They are some 1940's robust version, that the homeowner said may be called "diamond" block. WallCap Block Wall Sealing Benefits. Without Tempshield® Reflective Insulation radiant barrier, concrete structures can. This article explains concrete block or "cinder block" or concrete masonry unit (CMU) foundation inspection procedures and the diagnosis of cracks, bulges, leaning, bowing, and settlement in concrete block foundations and building walls such as damage due to impact. Concrete Block or Brick. All of these materials respond to changes in moisture and temperature. Condensation within and behind walls is a less obvious but equally damaging factor. for Indicating Moisture in Concrete by the Plastic Sheet Method. This is probably impossible. To waterproof, strengthen, and preserve the overall appearance of your basement cinder block walls, seal the blocks permanently against moisture and efflorescence with RadonSeal Plus Penetrating Concrete Sealer. Spend time lifting stains with soap, trisodium phosphate, and other cleaners. To prevent decay, a moisture barrier (i. The wet, humid conditions that contribute to mold growth in basements are often the result of moisture vapor coming through the concrete floor or wall due to a high water table or saturated soils. After cleaning all the mold, determine if you have a moisture problem before installing a new wall. Bullnose Concrete Block (Common: 16-in x 4-in x 16-in; Actual: 15. All concrete foundation walls in homes built in our area must be protected from moisture at the exterior. At Dry Crawl Spaces, our solution to block foundation walls in a crawl space is the WallCap Block Wall System. In addition to the non-reversible shrinkage, concrete block also undergoes moisture cycle movements with wetting and drying as well as thermal expansion or contraction. External sources of concrete moisture can. Seal-A-Crete: Permanent Penetrating Concrete Sealer. The foam will keep moisture from entering the finished space and keep it against the block/concrete wall. The landlord says to cover them up during winter months and uncover them during the summer the walls sweat, the windows sweat, carpet sweat, creating mold. Stains, paint deterioration, and rot are usual signs of moisture damage. Surface Bonding Cement - A fiber reinforced portland cement based coating for concrete block and masonry walls. Walls exposed to the outdoors have a greater chance of thermal expansion and contraction, and retainage of moisture, than walls located indoors or in protected areas. These concrete block walls are not your average 8"X16" block. You can block moisture buildup in numerous ways — most only require a bit of knowledge and the use of preventative building strategies. the trick is to use the right approach and material. For a poured wall basement, a contractor pours concrete into the foundation framing to create a basement wall. Concrete slabs and floors can be excellent subfloor surfaces for tile and other floor coverings, but too much moisture in the concrete can cause problems with flooring installations. You can block moisture buildup in numerous ways — most only require a bit of knowledge and the use of preventative building strategies. In addition to precipitation, moisture can find its way into masonry walls from a number of different sources (see Figure 1). In order to prevent ground water from damaging the pool structure, BuildBlock strongly recommends that moisture barriers be installed against the ICF blocks on the outside of the walls before they. Efflorescence is created as moisture passes through the porous concrete in of your basement walls and into your home. 35% RH System Recap- Concrete Block 12" ,Uninsulated Coating System-Interior- Two coats of TNEMEC156 AB ENVIROCRETE applied to interior block wall at 8. They are heavier and costlier on average, while cinder blocks are made with Portland cement and fly ash, a byproduct of the coal industry, and they are. A wall typically requires 1 1 / 8 blocks per square foot. Concrete Blocks, or Concrete Masonry Units, are a time-proven, cost-effective landscape and construction material frequently used for walls. There is no insulation on the exterior walls, and I want to add some without losing already limited floor space. Often there are moisture barriers in place, but they can wear out and become less effective over time. The mass of the concrete is able to absorb any moisture generated by vapor traveling through the assembly, and will dry out before it reaches 80% relative humidity. If you had a 20' x 30' [6m x 9m] basement with concrete or concrete block walls, your heat loss could easily be over 1 million BTUs per day through the walls. Concrete block walls tend to be more susceptible to water leaks. If there is excess moisture, it can be carried to the surface and deposited when the moisture evaporates. moisture issues were more severe shortly after completion of construction, before construction moisture dried, than after a year or two. Brick and block walls generally have precast concrete lintels. The entire system is $3,000-$5,000 for a 20-by-20-foot basement room. Remove all loose and unstable concrete or masonry from the repair area. Concrete block walls tend to be more susceptible to water leaks. Also, I hate to be "that guy," but it is more than likely concrete block, not "cinder block. Effectively seals open cores along the top of concrete block walls. Is the exterior Waterproofed, Dampproofed or just back plaster and block or mortar against the soil. The mass of the concrete is able to absorb any moisture generated by vapor traveling through the assembly, and will dry out before it reaches 80% relative humidity. Moisture is generated inside of basements from people and their activities. concrete block insulation Insulated concrete blocks can accommodate many walls in a home. Mass walls behave differently from other structural systems, such as wood or steel. Any product designed to seal the block will work. carbonization and the loss of moisture that occurs with time in a cement-based product. An information series from the national authority on concrete masonry technology NCMA TEK 6-11A 1 INSULATING CONCRETE MASONRY WALLS INTRODUCTION The variety of concrete masonry wall constructions provides for a number of insulating strategies, including: interior insulation, insulated cavities, insulation inserts, foamed-in-place insulation, granular fills in block core spaces, and exterior. To produce brick hectors of land, tons of wood and coal are wasted. Although most common residential foundations are made of poured concrete, many homes in the United States, especially in areas where transportation of concrete is an issue, sit on foundations made of concrete block, sometimes called cinder blocks or CMUs (concrete masonry units. When applied below grade, water repellent sealers will help to reduce the movement of moisture by up to 2-3 LBS. June 2016. Weep holes on the inside of the basement at the floor line allow the drainage of the blocks below the floating slab down to the drain tile. In this face of the wall it was intended to represent what would be a common type of external coating. Breathable paint, by contrast, helps keep liquid moisture out, but allow absorbed moisture to escape from the wall, if it does get that far. The temperature & humidity of the cinder block is now very close to the indoor temperature & humidity- much warmer in winter than when it was outside the thermal boundary. If required a damp proof membrane can be positioned over the beam and block floor. Unlike thermal expansion and contraction, dimensional changes in brick due to moisture are irreversible. The 2 most common ways stucco can be damaged by surface moisture is: 1) Improperly placed and adjusted irrigation sprinklers. It's vital to etch if you're painting or staining a concrete floor - I'm not so sure how important it is for walls as they wouldn't get any wear or tear, the proper paint should adhere without issue. The location of the brick wall. The wall will perform better than the sum of the two R-values. Surface Bonding Cement - A fiber reinforced portland cement based coating for concrete block and masonry walls. Soil is almost always damp. I have leak's on my basement wall can i use swimming pool paint to stop the leak's. Water can find its way into a basement over time and some obvious signs, from efflorescence to spalling, can point to a problem. If a concrete vapor barrier was correctly installed before the concrete floor was poured, there wouldn't be a need to block moisture from the surface of the concrete. All blocks (8×8 and 4×8) were filled with cement and rebar. Effectively seals open cores along the top of concrete block walls. At Regional Foundation Solutions , our solution to block foundation walls in a crawl space is the WallCap Block Wall System. Master Gardener, MS Biology (and Pesticide Applicator Certified) Gardeners love raised beds. I have a cinder block basement, about 50 yrs old. Swimming pool paint is not intended to stop leaks coming from the backside of the paint. It is desirable for all dimensions of a block wall to be divisable by 225mm. The signs of efflorescence and the white deposits are not mold. Moisture sources for concrete are both internal and external. Tempshield® Reflective Insulation radiant barrier reflects the heat radiating through the concrete wall and reflects it back outside the structure. Then, Apply The Surface Bonding Cement. Therefore, it's advisable to have a floor tested for moisture content prior to installing flooring or moisture barriers. The location of the brick wall. For projects that have already sustained water damage, though, it’s not too late to fix the issues before they grow worse. Best Sealer for Brick Walls 4. External sources of concrete moisture can. sheet rock), but it’s possible. An information series from the national authority on concrete masonry technology NCMA TEK 6-11A 1 INSULATING CONCRETE MASONRY WALLS INTRODUCTION The variety of concrete masonry wall constructions provides for a number of insulating strategies, including: interior insulation, insulated cavities, insulation inserts, foamed-in-place insulation, granular fills in block core spaces, and exterior. Goldberg & Aloi (2001): Field-testing in Minnesota involved concrete block basement walls insulated from the interior with glass fibre insulation, and polyethylene inboard of the insulation. Concrete is a porous material that can absorb water from the ground and transfer through the foundation. Basements are the perfect location for foam type insulation products. Another possible source of moisture accumulation inside the crawl space is pipe leaks. As it is, the blocks are likely just continually absorbing moisture and depositing it into your walls. If sustained, it can lead to the decay of materials in contact with the wall (Photo 2). Many adhesives used for installation of floor coverings are more water-sensitive. In some cases, this is not visible on the interior face of the foundation, but the. Poor adhesion, moisture and mold problems could occur. Water causes damage to a concrete block wall's structure and surface coatings. If you decide to us dry-lock from the inside you will need to take a grinder with a concrete cutting blade and cut a groove close to the concrete block in the floor all the way around the floor then chip out a small area about 2 or 3 inches deep so you can put a foundation water pump in the hole to pump out any water that collects there you. When a vapor barrier isn't used under the concrete, the next best solution is to waterproof the concrete from the top, taking advantage of the porous sponge-like. 95% of affected concrete block is within 10% of its normal moisture content as determined by actual measurement in a control point elsewhere in the same building preferably on the same floor or the readings are within the green scale on the meter. It appears that moisture is pushing the paint off of the concrete - the paint can be peeled off in pieces the size of your fist. A traditional EIFS exterior wall is comprised of EPS foam, fiberglass mesh and a cement-like stucco material. It is cinder block. I suspect this is why several in this thread recommend STRONGLY against any Vapor Barrier on basement walls. The moisture would have been cut off at the source, the sub-base. Moisture can move through underground cement in many ways. Walls exposed to the outdoors have a greater chance of thermal expansion and contraction, and retainage of moisture, than walls located indoors or in protected areas. Concrete block is a porous material and must be waterproofed to prevent seepage. as so says it is breathable do it will not trap moisture, It sounds to me to be what the doctor ordered after you get the joints fixed. The basement foundation walls are hollow cinder block, and there have been no water problems anywhere in the basement with the exception of this one corner of the room we are renovating. A dehumidifier will help to reduce air borne moisture and will also help to reduce the musty basement smell. The ratio of water to cement in your batch of concrete remains one of the most influential factors as to how long a concrete slab needs to cure and dry. The 2 most common ways stucco can be damaged by surface moisture is: 1) Improperly placed and adjusted irrigation sprinklers. It is structural material and must be always accompanied by an insulation layer. The barrier is part of a comprehensive system to prevent water. Concrete Block Concrete Forms Measuring Moisture Building Enclosure. If there is currently oil-based paint Step 2. Push the cement. The architect should always attempt to design buildings using the nominal dimensions to the nearest half-block size to reduce waste and labor due to cut blocks. In addition to precipitation, moisture can find its way into masonry walls from a number of different sources (see Figure 1). External sources of concrete moisture can. It’s simple: you erect a wall out of 8″ deep concrete masonry blocks, which are heavily reinforced and grouted to comply with the HVHZ (high velocity hurricane zone) requirements, and place three coats of cement-lime stucco over. Efflorescence is often described as dissolvable salts in moisture that are transported through porous materials such as concrete, brick, block and stone through capillary action. It is common to see a brick wall almost turn all white from efflorescence. To prevent decay, a moisture barrier (i. As a recognized leader in the construction industry, with a reputation for innovation, outstanding service and quality products, Watkins supplies quality building materials and accessories for projects of any size. Sealing breeze block walls can help prevent water from soaking into them and al. A great way to view and understand your building or repair project before you get started. The porosity of cement blocks make it a key area for mold growth. The inside vertical foundation walls are covered with 6 mil in an encapsulating best practice. Foam Under Footings Yes, you can build your house on rigid foam — as long as you can convince your local code official to let you do it Thermal bridge alert. Goldberg & Aloi (2001): Field-testing in Minnesota involved concrete block basement walls insulated from the interior with glass fibre insulation, and polyethylene inboard of the insulation. Whether you are veneering a garden wall or a cinder block foundation on a building, it is important that the veneer rest on a solid footing. From the chart above, a cool basement at 10C/50F which reaches a humidity level a level of 90% in the wall cavity with vapor barrier would lead to a wood moisture content of 21%. Description: moisture equivalent (WME) of concrete, dry wall and other materials. Any product designed to seal the block will work. cons - seals the surface up well which prevents moisture from evaporating from the block. Steve asks, “I built a retaining wall last year, and the blocks are turning white. Water also won’t cause a problem with the foam. painting block is an extremely common commercial/industrial finish process. There is no moisture or water at all, no cracks or crumbling, just the pops. Protecting below-grade walls from water entry involves installing a barrier to water and water vapor. Stains on cinder block fence I have a cinder block fence and on the outside wall which fall on the street there are stains most likely from water/rain sipping from the yard. DRY-BLOCK® Mortar Admixture’s water-repellent properties will prevent the moisture from wicking through the mortar joint into the building’s interior. Wet and apply the surface bonding cement as you go, to prevent cracking. concrete block insulation Insulated concrete blocks can accommodate many walls in a home. The flowers inside the raised area are lush and colorful, and there are also palm trees and plants that make you think of a tropical location. Poured concrete shrinks after pouring. Concrete walls are usually designed to be set on a compacted gravel base and remain strong even when you apply pressure. Orientation and exposure of brick walls in relation to cardinal directions will affect the amount of sunlight (heat) that will be absorbed by the wall. So bauen Sie eine Cinder Block Wall, Cinder Block Projects - New Ideas. Remove all loose and unstable concrete or masonry from the repair area. IS 2185 (Part 1) :2005 Indian Standard CONCRETE MASONRY UNITS — SPECIFICATION PART 1 HOLLOW AND SOLID CONCRETE BLOCKS (Third Revision) 1 SC-OPE This standard (Part 1) covers the following concrete masonry building units which are used in the construction ofload-bearing and partition walls: a) b) c) HO11OW(open and closed cavity) load bearing. Concrete blocks also come in half-sizes, which are helpful in reducing the need to cut blocks in the field at corners or the end of walls. If your foundation walls appear in any way similar to the images above, you have visual confirmation that your concrete block / cinder block walls either have water trapped inside the blocks or moisture wicking through them. For example, an 8x8x16-in. These concrete block walls are not your average 8"X16" block. Thermo-hygrometers (sometimes called RH meters) are a special kind of moisture-testing device that can be used to monitor temperature and relative humidity conditions in a given area. Location: Even if the block or concrete wall appears dry it is not recommended to attach the drywall directly in a basement. Moisture in the cinder blocks can cause the paint to flake within a short time. The architect should always attempt to design buildings using the nominal dimensions to the nearest half-block size to reduce waste and labor due to cut blocks. Concrete or concrete block walls have the same R-Value as a ¾" [1. With the foundation wall at room temperature, the footing acts as a thermal bridge that allows heat to flow from the concrete block wall to the soil. Patch any holes in the basement cinder-block wall with your hydraulic cement. By painting the walls or foundation, you increase the appeal of the space, but also it improves the moisture control from the wall. for Indicating Moisture in Concrete by the Plastic Sheet Method. Each of these vapor retarders can be used with the wall systems described previously. 625-in x 15. When emanating from mortar in brick or block buildings, efflorescence will appear as narrow bands corresponding to mortar joints. It's vital to etch if you're painting or staining a concrete floor - I'm not so sure how important it is for walls as they wouldn't get any wear or tear, the proper paint should adhere without issue. A concrete stem wall can be built out of block, rod, and concrete, without the use of any mortar. As the moisture passes from your walls into your basement air, it leaves any minerals in the water behind on the basement walls in the form of this white, powdery substance. web of the block. Being inside the. Water penetration into brick masonry walls leads to several problems such as efflorescence, mortar joint deterioration, interior moisture damages and spalling. A great newly concrete poured wall with 8-10 inches thick is considered impermeable. The cinder block wall is encircling the home with an accented angle that makes you think of a garden out west. A concrete block is one of several precast concrete products used in construction. Foam Under Footings Yes, you can build your house on rigid foam — as long as you can convince your local code official to let you do it Thermal bridge alert. • Lateral support of walls: Lateral support of walls was not a design issue with the two case study homes, nor will it be an issue for many low-rise residential structures. Tips for damp proofing & leak repair: Preparation is key to any project. Swimming pool paint is not intended to stop leaks coming from the backside of the paint. A hot cup of coffee transfers heat to the air in the room until they are both at the same temperature (this is related to entropy and the second law of thermodynamics). Building a cinder block foundation. for concrete walls. Moisture seeps gradually through concrete and causes mold growth and deteriorates concrete and mortar. Use a masonry sealer, such as ThoroSeal, that also patches cracks ($35 for a 50-pound bag). Endur-O-Seal USA, Inc. Q&A / Concrete Block Crumbling Concrete Defects | Concrete Installation | Q & A text: Tim Carter. Polyurethane Foam Insulation for Concrete Masonry Unit Block Fill Projects STEP TWO With pour cap and tube installed on gun, place tube into cavity working. When the moisture carrying the salts reaches the surface, the air causes the moisture to evaporate which then leaves a white crystalline type of powdery material or a. If these cracks are not sealed, moisture is sure to enter. Often there are moisture barriers in place, but they can wear out and become less effective over time. This wall is absorbing so much moisture that it is leaking into the beauty salon and causing considerable. We have our footer approved by inspector, but we used 8×8 cinder block and on the sides of home used 4×8, and sat joists of 8×8 lip under the 4×8. - Understand the best techniques and materials to specify for moisture control in masonry. So bauen Sie eine Cinder Block Wall, Cinder Block Projects - New Ideas. External sources of concrete moisture can. Concrete block especially wicks moisture, and that damp spot below grade will simply migrate to above the vapor barrier. The finished crawl space should be waterproofed. In this face of the wall it was intended to represent what would be a common type of external coating. External sources of concrete moisture can. Clear plastic provides high visibility for foundation inspection by pest control contractors. In cavity walls, there will also be an inner lintel and this should have a DPC over it that will drain any moisture that gets into the cavity to the outside. It's the default for any poured concrete wall below grade. MOISTURE BARRIER 8" Concrete Blocks--·~ 10 perms. In a vented crawl space, cooler temperatures may cause moisture in humid air to condense on the walls, ceiling, and on the ground. The basement foundation walls are hollow cinder block, and there have been no water problems anywhere in the basement with the exception of this one corner of the room we are renovating. Q&A / Concrete Block Crumbling Concrete Defects | Concrete Installation | Q & A text: Tim Carter. Although most common residential foundations are made of poured concrete, many homes in the United States, especially in areas where transportation of concrete is an issue, sit on foundations made of concrete block, sometimes called cinder blocks or CMUs (concrete masonry units. In simple terms, R-values measure the effectiveness of insulation and a higher number represents more effective insulation. The ugly white powdery buildup is the efflorescence you see on your basement walls is that mineral salt. The signs of efflorescence and the white deposits are not mold. If you have a cinder block and if the core is filled, it might have a higher R-value. Protecting below-grade walls from water entry involves installing a barrier to water and water vapor. Cinder blocks differ from concrete blocks in other ways besides their hollow design. In cavity walls, there will also be an inner lintel and this should have a DPC over it that will drain any moisture that gets into the cavity to the outside. Water penetration into brick masonry walls leads to several problems such as efflorescence, mortar joint deterioration, interior moisture damages and spalling. Building a cinder block foundation. In fact, your walls will absorb up to 95% less moisture than an untreated wall!. Structural damage includes cracked or loosened mortar joints and shifting blocks. Concrete block especially wicks moisture, and that damp spot below grade will simply migrate to above the vapor barrier. Seal-A-Crete: Permanent Penetrating Concrete Sealer. When it comes to how to insulate a concrete block house with solid walls, applying the insulation material is a bit like waterproofing your home, leaving your wall completely dry, and resolutely resistant to moisture. You won't be able to get a.