BRS Pros helped Jerry with his crawl space. Here are some steps we took…
Organic Growth – Phase I of this work consisted of cleaning the crawl space sub-floor of wood decaying fungi and organic growth. After cleaning, Phase 2 consisted of fogging the crawl space. Phase II will kill 99.9% of mold spores and will inhibit the growth of mold and mildew. Decay and organic growth was treated and cleaned, however, it is likely that some staining will remain due to any pre-existing damage to the wood members.
Spray Foam – Class A fire rated polyurethane closed cell spray foam insulation was sprayed on the rim joists and sill plates. It prevents air infiltration (unlike fiberglass insulation) and will insulate the wood band plates (rim joists) above the masonry foundation wall. Closed cell foam insulation (moisture and air will not penetrate this product) will fill and seal cracks, cavities and joints. Fiberglass insulation will not perform to prevent air infiltration. This product application will reduce cold spots in the floor adjacent to the main level walls.
Foundation Vents – Foundation vents were completely sealed with poly-foam insulation from the interior of the crawl space preventing exterior air and moisture into the crawl space.
Blanket Insulation – We installed our fiberglass blanket insulation with white vapor barrier to the interior perimeter foundation walls. Insulation is 4″ thick which offers an R-13 insulation factor (code compliant for new construction). Insulation was hung approximately 6″ from the top of the interior masonry foundation wall to provide a termite inspection and will cover wall to approximately 4″ off the ground.
9 Mil Wall Liner – We installed 9-mil white 100% woven reinforced wall liner. The wall liner was mechanically fastened with nails designed for foundation walls to within 6″ of the top of the crawl space foundation wall to provide a complete future termite inspection unless indicated elsewhere. Mechanically fastening wall liner is a permanent solution opposed to just caulk or tape which will result in future maintenance or failure of the system.
15 Mil & Radon Ready – We installed our Premium (walk on, store on) 15-mil white 100% woven reinforced radon ready crawl space system. The liner was mechanically fastened with nails designed for foundation walls to provide a permanent fastening system. (Caulking or taping liner to foundation walls is a temporary system and will become a maintenance issue.) The premium ground liner was nailed/sealed approximately 6″ to 12″ above the earth in the crawl space to the foundation wall. A radon piping system was then installed below the ground liner. The piping system will be used in the future when the home is tested for radon gas and requires a complete radon system. The 15-mil woven ground liner will control moisture vapor and dampness from the ground. Most crawl space liners are partially reinforced, our woven liner is 100% reinforced and tough unlike competitive brand liners that are only 10% reinforced. This product will not off gas (known on Google as “crawlspace cat urine odor”, go ahead and check it out), we guarantee it!! Our woven ground and wall liners are antibacterial, meaning mold and other organic growth will not grow to the liner.
Dehumidifier – Aprilaire has been the industry leader in residential humidification control since 1954. The Aprilaire Model E100 “Energy Star” rated dehumidifier delivers 23% annual energy savings above conventional products, a high-capacity solution designed for humidity control in crawl spaces and basements. The Model E100 potentially can remove up to 95 pints of moisture per day! Proudly made in the USA. Five year manufacturer’s parts warranty when installed by BRS Pros, an authorized installer for AprilAire.
It was a pleasure helping Jerry make his home happy, healthy & safe again!