INSULATION FOR CRAWL SPACES
Rectangular-shaped holes that penetrate oval or round vents from the crawl space of your home is a common and burdening situation for homeowners, even if you have batt insulation installed. Since batt insulation is unable to create a vapor/air barrier, it cannot contain contaminated, warm, or cold air, from entering your home through the crawl space.
The living space of your home can be infiltrated with mold, earth gases, rodents and other allergens if your crawl space is not properly sealed.
The only material that can achieve a full seal is spray foam insulation. In order to accomplish an effective thermal barrier from obstructions like ductwork, plumbing, and wide/narrow joist spacing, spray foam insulation must be applied between the floor joists of your crawl space.
Due to the use of wire insulation hangers, fiberglass insulation can often be compressed when it is applied. Insulating open web floor trusses properly with fiberglass is nearly impossible since air can move inside the fiberglass. This is because open web floor trusses can generate pathways of air.
Mold, condensation, and a decaying floor system are all generated during the summer, when warm and humid air flows around the fiberglass insulation.
A proper and effective barrier for vapor infiltration between the ground and homes subfloor surface is closed-cell spray foam insulation. Closed-cell spray foam stops any vapor or air from moving into the home’s walls or attic space, eliminating any problems that could be caused by the “stack effect.”
Floor insulation problems are reduced, since spray foam completely fills open spaces and voids. Spray foam, unlike fiberglass, fills the open webs of full trusses completely, and creates a complete and uniform thermal barrier on the floor, as it also fills all areas around the wiring and plumbing.
Overcoming several disadvantages that other insulation products can bring to the table, spray foam insulation is the superior product when it comes to insulating your crawl space.
A more consistent and uniform thermal barrier that contains air flow/stack effect retarding functions is produced with the application of spray foam.