Rigid Foam vs. Fiberglass Insulation: Major Differences Rigid Foam Insulation. Rigid foam insulation consists of panels sold in 4-by-8-foot sheets in thicknesses from 1/4 to 2 inches.

DEAR TIM: I am currently installing rigid foam insulation around the exterior of my foundation. I’m installing three inches of it to a depth of 10 to 13 inches below grade to keep the heat in ...

Rocco incorporated her Alpaca Fiber Insulation Company of Ohio in January 2014 after working with independent testing labs to document the fiber's superior R-value. ... blown-in rigid board, ...

The R value of rigid foam insulation increases with the thickness of the product. It’s possible to get a panel that’s four feet by eight feet in size and two inches thick that has an R value ...

Rigid foam insulation, especially products with low global warming potential (GWP) and environmentally friendly blowing agents, aligns with sustainability goals, driving market growth.