Historical: Kraft-faced Fiberglass Batt Insulation - 2015
This information reflects our best understanding of product composition in 2015.
Fiberglass batt insulation is a thermal insulating product with high thermal performance, moisture resistance, fire resistance, and is sound absorbent. Fiberglass insulation is fabricated using a molten glass batch consisting of raw materials (...
More about Historical: Kraft-faced Fiberglass Batt Insulation - 2015
Fiberglass batt insulation is a thermal insulating product with high thermal performance, moisture resistance, fire resistance, and is sound absorbent. Fiberglass insulation is fabricated using a molten glass batch consisting of raw materials (sand, borates, soda ash, lime) and recycled glass cullet. The molten glass is spun into fibers and an atomized binder is applied as the fibers settle onto a conveyer to form batts which are then conveyed through an oven to cure the binder. Originally phenol-based formaldehyde binders were used, but concerns about indoor air quality led to the development and use of formaldehyde-free binders by all four fiberglass insulation manufacturers (Johns Manville first, then CertainTeed, Knauf Insulation, and Owens Corning). The entire industry switched to formaldehyde-free binders by 2015 for lightweight fiberglass products. Fiberglass batts can be either unfaced or faced with a Kraft paper, foil, or polyethylene film vapor retarder. Kraft paper facing is the cheapest option that meets residential codes in California and is the vapor retarder considered in this survey. Fiberglass batt insulation is installed by placing the batts into the wall cavity and stapling the facing to the framing members. Faced insulation should not be left exposed, but covered with gypsum board.
A more up to date Common Product is available here: https://pharos.habitablefuture.org/common-products/2085494