Under Grade EPS Insulation

Closed cell EPS has massive benefits compared to XPS in every category. We have A-Grade 4' x 8' x 2" in 40 PSI extreme high density for under concrete. Custom sizes from 1/2" - 6" are available.

Check out why Closed Cell EPS is superior opposed to XPS (blue or pink board) in every category from long term R-Value, water retention, foil for heat and light reflection, 1/2 the price and more!

• No dyes & 100% recyclable, making this very Eco Friendly.
• Laminated facing to prevent water penetration and/or damage and foil facing on the back side for reflecting heat and light.
• Does not lose R-Value over time, unlike ALL other types of insulation board.
• The ONLY insulation board that gains R-Value as the temperature gets colder!
• No thermal drift over the entire life of the product.
• Easy to cut & install in any shape and size to fit your needs.
• The best water wicking product on the market! You won't have to worry about moisture damaging your insulation unlike XPS.
• Proudly made in the USA, like every other product we offer.