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We were originally called out to see if we could just clean up the rodent activity in this crawlspace. After a thorough evaluation we identified a few key factors in fixing this crawlspace up right. 1) The contaminated temporary 6 mil liner had been layered over the earth and not properly sealed around the perimeter walls. 2) the liner had enough maintenance traffic in the past causing small pin holes in the liner, which allows for ground moisture to evaporate into the crawlspace - condensation on the cold walls in the winter - resulting in mold. 3) Small air gaps around the perimeter was allowing for rodents, pests, and cold air into the home - resulting in rodent mess, insects activity, and a high energy bill. After cleaning up the rodent activity & mold, we properly encapsulated the crawlspace and air sealed the perimeter - to help prevent air/rodent intrusion & mold.
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This crawlspace needed all of the rodent contamination removed, horizontal surfaces HEPA vacuumed, & a botanical disinfectant applied. We filled the air gaps around the perimeter rim assembly with a closed cell spray foam with a bitterant agent to help prevent rodent intrusion. Lastly, we installed a moisture barrier sealed around the bottom of the foundation walls and central pier footings to keep moisture where it belongs.
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We identified the cause of microbial growth to the wooden structural elements of this crawlspace to be a plumbing leak that over time, created the perfect conditions conducive to microbial growth. After a thorough evaluation of the subfloor the fiberglass insulation was removed, bagged, and disposed of properly. After using the CO2 cleaning method, we applied an EPA Registered white fungicidal coating to all wooden structural elements to prevent future microbial growth. Once the fungicidal coating was dry, we did a light regrade of the Earth floor in preparation for the CleanSpace Encapsulation System. Next, we rolled out Drainage Matting that allows moisture and air to flow freely underneath the liner as a passive radon system. We then installed 2" foamboard and closed cell spray foam on the perimeter exterior walls and rim assembly to keep the crawlspace insulated. This allows the subfloor to be accessible for plumbing and electrical maintenance. Lastly, we installed the 20 mil, antimicrobial CleanSpace liner over the drainage matting and foundation walls to help prevent moisture, mold, & Radon from re-entering the crawlspace.
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Colorado Crawl Space has many years of experience helping homeowners solve their crawl space needs. There are many steps to achieving a dry, clean crawl space. We encapsulate your crawl space, sealing it with a vapor barrier to prevent any water from entering. We also include a drainage system and sump pump to remove any water that does enter in extreme conditions.
An energy-efficient dehumidifier can be added to prevent humidity and its accompanying mold growth. Our crawl space encapsulation system comes with a 25 year warranty. If you are suffering from a sagging floor over the crawl space we add support jacks to correct the issue. With the right products and years of experience we are an easy choice for your home project.
We offer free estimates for all of our services in and around Edwards - schedule yours today!
*For mold related services, there may be a charge for a quote. Please contact us for more details.