Does fiberglass insulation need to be sealed?

Fiberglass Insulation In most climates, it needs a vapor barrier. Some builders rely on batts with attached kraft-paper facing to do that job, but Tom recommends unfaced batts, covered in plastic with all the seams taped shut.

Is encapsulated insulation better?

Crawl space encapsulation is great if you have issues with moisture and standing water in that area. Insulation is much better suited if you’re dealing with cold floors and frozen pipes.

What is encapsulated batt insulation?

Encapsulated fiberglass batt insulation is a popular thermal and acoustical insulation solution for all types of construction and any climate zone across the U.S. It is easy to install and is wrapped in plastic to provide a comfortable, itch-free and dust-free installation.

Do you need to insulate an encapsulated crawl space?

You don’t need to insulate an encapsulated crawl space. Crawl space insulation can be applied between the joists or on the walls of the crawl space. If the crawl space is vented then joist insulation is recommended. If the crawl space is encapsulated either can be used but we recommend insulating the block walls.

What are the dangers of fiberglass insulation?

“Fiberglass insulation should never be left exposed in an occupied area, according to the American Lung Association,” says ALA’s Godfrey. “Exposed fiberglass insulation, once in the air, does cause respiratory reactions, such as dry, scratchy throat and coughing, as well as acting as a skin and eye irritant.

What materials are used to make fiberglass insulation?


  • Phenolic
  • Polyisocyanurate (polyiso)
  • Where to buy encapsulated insulation?

    Your nearby Service Partners branch is your go-to source for all of your favorite encapsulated fiberglass batt insulation brands, including CertainTeed, Johns Manville, Knauf, and Owens Corning.

    Is fiberglass insulation better than cellulose?

    When it comes to air infiltration cellulose is a better choice because it has 38% better air infiltration than fiberglass. Cellulose properly insulates the attic because it forms a dense continuous mat and keeps the air moving within the insulation. You can try Ceramic rope instead of fiberglass. 20 views