Wall insulation Vapor barrier Drainage system around perimeter Ensure surface is dry before spraying Durability of vapor barrier if having to access mechanics in crawl space Air conditioning/circulation after sealing Repair cracks Spray insulation should not be applied to damp wood How reliable is the tape Rigid foam vs spray Does foam absorb water Does foam maintain insultion What is the R value Insulation to ceiling Insulate rim joists
28 x 30 = 840 SF (66 - 28) x 28 = 1064 SF Total = 1904 SF
low: 2000 - 4000 med: 5000 - 7000 high: 8000 - 14000
A popular practice is to spray a closed-cell foam or insulation at the top of the wall and over the rim joist (where the foundation meets the floor joists). Sealing this joint can cause wood rot and severe damage to your home’s structure. Perma-Seal’s solution is to install rigid foam insulation (SilverGlo) between the floor joists. This is a breathable material and will help to insulate your crawl space and keep the heat indoors.
In a dry below-grade crawlspace this method is the most energy efficient. The problem is that in most below-grade crawlspaces, the foundation or ground floor of the crawlspace is NOT dry. In fact, a majority of the crawlspaces we run across with spray foam have some form of dry rot in the structural components because the foam has trapped the moisture in the wood. It is not uncommon to see the spray foam become separated from the wall from the moisture intrusion. Unless the crawlspace has external footing drains, a foundation waterproofing membrane, a foundation sealant, positive grade, and downspout extensions, we cannot ever recommend this method of insulation.
AmeriBrite crawlspace liner is tough enough for you to crawl on it and you can use your crawlspace for storage without worry of moisture penetration causing damage to the stored items. Servicemen can crawl on the liner without every worrying of poking holes or tears in it.
We never seal the liner on or above the sill plate (as some contractors do) because doing so gives water vapor a direct path to the wood and can be a route for termites to get into the house framing.
Install dehumidifier Attach to ceiling Drain to pit Drain with condensate pump Drain connect to existing plumbing
630 561 5200 Thuroshield polyurea floor barrier
800 471 3333 Algonquin, ILInstall dehumidifier
Need to remove insulation
630 318-4888
The Crawlspace Encapsulation System by Reliable Basement Services involves installing a 16-mil barrier of polyethylene with polyestercord reinforcement on the dirt or concrete floor that is fastened to the walls. Then, in some homes, we look to introduce a heat source to the crawlspace to make it part of the conditioned space.
847-447-0646 847-382-2882
630-879-6116
Our newest product is called Goldentouch it is a 16 mil fire retardant reinforced poly, white on one side and gold on the other. It is the only fire retardant polyethylene product on the market for crawlspace encapsulation.
1-800-421-7325 513 Rogers Street Downers Grove, IL 60515 (630) 512-0002
888-733-7243
The walls are treated with our specialized radiant reflective insulation which lowers energy costs and retards future mold growth. To cover the dirt / gravel floor, we install a 20 mil. reinforced polyethylene vapor barrier. It is extremely durable and puncture resistant as it is 300-600% thicker than a standard plastic vapor barrier a typical builder would install. All seams are sealed air tight with our specialized high strength tape. Our ComfortCrawl System is an ideal and economical choice to brighten up and encapsulate your once dark, damp and uninviting crawl space.
1-877-409-2837
The AmeriBrite liner is a heavy, reinforced plastic material similar to a pool liner. It is made of multiple layers of plastic with different characteristics of flexibility and tear resistance. The bright white finished side dramatically transforms your crawlspace from the nasty, dark space it was. The AmeriBrite crawlspace liner is tough enough for you to crawl on it and you can use your crawlspace for storage without worry of moisture penetration causing damage to the stored items. Servicemen can crawl on the liner without every worrying of poking holes or tears in it.