Buildings have been dampproofed for years, a practice that used to be mistakenly referred to as waterproofing. Any concrete or masonry foundation walls "that retain earth and enclose interior spaces and floors below grade shall be dampproofed from the top of the footing to the finished grade." The drawbacks include an inability to seal larger cracks or holes left by form ties and the potential for damage by coarse or careless backfill. The International Residential Code (IRC), in Section R406, specifies the conditions that require either dampproofing or waterproofing. System 17 PMA is a cost-effective, water-based, polymer-modified asphalt waterproofing material with excellent elastomeric properties. To damp proof an exterior foundation wall, it will first need to be exposed. Our basement wall products can make your home a more comfortable, beautiful place, all while solving an important problem in your home. But damp-proofing will only retard moisture; it can't stop a head of water bearing against the foundation. Contact us today for your free estimate! System 17-X protects the surface with a moisture impervious membrane System 17 PMA is designed and recommended for use below grade on exterior foundation walls. Basement Systems Inc. has been awarded 24 Patents and 19 Innovation Prizes on waterproofing products we use every day, including a battery back up sump pump system. Marina Bay Sands; Logan Int’l Airport; Dick’s Sporting Goods; Cheney Stadium; Bovis Lend Lease; Alsco Laundry Facility; YMCA; Woodbranch Park; Vale Mine’s Frood-Stobie Mechanic’s Garage Each of these wall products will hold back humidity, and can be tied into our drainage systems to direct water leaking from the walls to a sump pump. As early as two years after a home has been constructed, the foundation walls will begin to show signs of stress, in the form of cracks and crevices. Applying them is a tricky business -- if they're not applied just right, the black coating will be visible along the soil line. This will cause the products to start to crack and flake off the walls, allowing moisture to penetrate the walls. Other areas, with high annual rainfall, high water tables, and no frost in the soil, more commonly use slab-on-grade foundations. Instead, you should explore options that involve waterproofing the basement. But even these foundations need protection to keep moisture from migrating up from the ground through the slab (see Vapor Barriers for Concrete Slabs). When damp-proofing products cure and set, they will become rigid and brittle. This coating was developed for spray application. Damp proofing a foundation is a time-consuming, labor-intensive process that involves heavy equipment. A 36-inch frost wall for an unheated crawlspace built on well-drained soil and employing a gravity drain is a good candidate for damp-proofing. Damp proofing with tar- and asphalt-based mixtures is a limited treatment method that will eventually fail. Anything along those edges, including porches, patios, walkways, gardens, foliage, and other landscaping will need to be removed. Waterproofing is only required by the IRC "in areas where a high water table or other severe soil-water conditions are known to exist.". It is engineered to meet or exceed the performance properties of the best polymer modified asphalt coatings. Dampproofing is a coating, usually asphalt-based, that is either sprayed on or hand applied to the outside of the wall. This approach ensures the best waterproofing systems and solutions available. Do I Need Structural Repairs Or Basement Waterproofing. This would be installed before any wall products. Plus we listen to our customers and respond accordingly! We offer free basement wall repair estimates throughout Canada and the United States. Damp proofing is not intended to keep all water and moisture out of your home. Though less frequently recommended in modern residential construction, it is still an acceptable form of treatment in many situations. * What is a Free Estimate and Inspection? We have the solutions you need for dry, attractive basement walls! Waterproofing isn't pretty, and since it's going to get buried anyway, it's easy to skimp and go for damp-proofing instead, painting on that old black stuff that comes in a bucket. We offer the following system: WATERPROOF MEMBRANE – It’s all in the MEMBRANE… At Basement Systems, we've developed six different basement wall products that are appropriate for basements with moisture issues and leaking walls. Get a no cost, no obligation free estimate. Dampproofing is intended to keep out soil moisture while waterproofing keeps out both moisture and liquid water. The goal of damp proofing is to prevent moisture fro passing through the concrete walls into the interior space of your basement or crawl space. How is dampproofing different from waterproofing? The damp-proofing application that will be applied will be identical to the one that previously failed to keep back moisture. Because of this, damp proofing will generally cost as much as twice as much as simply waterproofing from the interior. Over time, some areas may begin to collect water next to the foundation. We'll also explain what we do suggest if you want dry, clean-looking basement walls . This process usually begins within just a few years of being applied. However, these coatings will often fail several years after the home has been constructed. Local conditions vary widely and help determine the right choice for preventing water infiltration. Before our visit, we'll also send ahead a full-color copy of our waterproofing book. In other words, some moisture will still enter your home through the walls. System 17 PMA maintains its outstanding properties when exposed to chemicals commonly found in soils. Damp-proof products are also highly susceptible to extreme weather conditions. Before the coating can be applied, the entire exterior of your home will need to be excavated. Instead, its goal is to retard the moisture infiltration into your home.

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