What type insulation to use in crawl space




















Energy Saver is here to help. We provide quality crawl space insulation solutions that will improve your home's comfort and energy efficiency. Contact your local dealer today to have a certified inspector determine the best course of action for your crawl space. Energy Saver, Inc 28 Progress Ave. Seymour, CT Request A Free Estimate.

Contact Us Online Best Crawl Space Insulation. Get Started. Get a Free Estimate! Fiberglass insulation is a material that is made up of plastic that is reinforced by extremely fine glass fibers. This composition gives the plastic additional strength while improving its insulation capacity. Fiberglass is a more traditional type of insulation found in walls, attics, and crawl spaces in many older homes. The most commonly used form of fiberglass found in crawl spaces is blankets, which is batts and rolls.

Spray foam is the other type of insulation for the crawl space. Open cell spray foam insulation can expand up to times its original size to fill every nook and cranny creating an air barrier that seals an area stopping air movement. The Building Science Corporation recommends a foam based insulation as the best insulation for crawl spaces because it creates an air barrier. This means spray foam is the best floor insulation so you won't need to wear extra pairs of socks.

Amanda previously has worked as a breaking news and crime reporter, TV news producer, and editor in Flint and Detroit. None of these things are what you want in or around your home! Mold and water contribute to how quickly wood rots. As your wooden joists and beams decay, your floors will begin to sag. The only way to fix sagging floors is to repair or replace the damaged boards.

All of these issues can be costly to repair. This photo was taken by an Acculevel team member, after repairs to the crawl space were completed. They removed the old insulation, installed spray foam along the outside walls, and replaced the failing wooden supports with adjustable steel jacks.

If you have questions about waterproofing, sagging floor issues, or unpleasant odors in your crawl space, check out our comprehensive Crawl Space Repair Guide for Homeowners! At Acculevel, we use a formula that combines two different components. Once mixed, these create a solution that can be sprayed onto any clean, dry surface. Full disclosure: we use products from Better Energy Store. The spray begins as two liquids, but through the mixing process it becomes a wet foam.

Immediately after spraying, the foam expands- filling every gap or crack along the way. It hardens as it dries, and becomes a solid, lightweight insulation that blocks out anything outside your home.

In our industry, spray foam is applied to spaces between floor joists, along band boards or band joists , or along the walls if you are planning to finish your basement. We have also used it to seal off crawl space vents. A close-up of spray foam installed along the band boards. This picture was taken by an Acculevel crew member after the crawl space repairs were completed.

Please keep in mind that R-value is not always the best way to measure a material. If you have multiple layers of an insulator, you can have a high R value. But if there are still gaps or drafts through those materials, you will still have cold floors. This photo was taken by an Acculevel project advisor during a routine estimate.

Some of the fiberglass insulation is falling, and what has stayed in place is beginning to mold. By far, the biggest negative is its initial cost.

The price of fiberglass insulation is something I researched, averaging out prices at a variety of hardware stores. Dear Reader, I must admit: comparing square footage to linear footage was embarrassingly hard on my brain. The other potential problem with spray foam is its permanence. If you decide to build an addition to your home, and need to access the wall of your crawl space?



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