BRS Pros helped Kathy and here are some steps we took…
Mold – Phase 1 of this work consists of cleaning the crawlspace sub-floor of wood decaying fungi and organic growth. After cleaning, Phase 2 consists of fogging the crawlspace. Phase 2 will kill 99.9% of mold spores and will inhibit the growth of mold and mildew. Decay and organic growth will be treated and cleaned.
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.
Dewatering – A clean trench was dug adjacent to the foundation footing along the four interior perimeter foundation walls, the hydra-channel was installed according to manufacture’s instructions adjacent to the footing. The Hydra-Channel engineered fusion welded high strength polyethylene water system will remove storm water up to 70% faster than a pipe and stone system. It will allow water to flow freely to the in-ground sealed sump pump/basin located in the right rear interior of the crawlspace. The Hydra-Channel system will carry a five year transferable warranty.
Sumo Pump – Installed our “Single Pump System” with a removable (flush with floor) lid covered with stone in the right rear corner of crawlspace. The system includes 1/3 HP cast iron primary pump with dual float cage that protects debris from the float. Included is a deluxe controller that monitors the pump and power conditions and will sound an alarm if problems are detected or a high water warning in the sump. Additionally, it activates the pump weekly to exercise and extend the pumps life.
Vents – Foundation vents were completely sealed with poly-foam insulation from the interior of the crawlspace preventing exterior air and moisture from getting into the crawl space.
Insulation & Wall Liner – Installed fiberglass blanket insulation with white vapor barrier to 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. Then, our reinforced 9-mil wall vapor barrier was mechanically fastened to foundation wall prior to fiberglass insulation to prevent any moisture/condensation from wall to contact insulation.
Floor Liner & Radon Ready – 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 crawlspace to the foundation wall. A radon piping system was 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. 15-mil woven ground liner will control moisture vapor and dampness from the ground. Most crawlspace 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.
Exterior Vents – Plastic exterior recessed vent cover secured and sealed to exterior masonry wall over the two existing foundation vents on front of home to seal vent openings and improve exterior aesthetics on home. Color is black. Cover will not rust.
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 crawlspaces 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 Kathy make her new home happy, healthy & safe!