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Big Sky Insulations

Foam-Control EPS and R-Control SIPs mean control, not compromise for energy savings, quality, comfort, and the strength of your project.

Foam-Control EPS.

Big Sky Insulations is a leading manufacturer of Expanded Polystyrene (EPS) products and R-Control Structural Insulated Panels (SIPs). Big Sky Insulations provides Foam-Control EPS brand products for insulation, ICF, continuous wall insulations, Geofoam, flat and taper roof insulation, protective packaging, and original equipment manufacturers (OEM).

R-Control SIPs.

Big Sky R-Control SIP roof, wall, and floor panels are produced using 8’x24′ precision fabricated panels. Our products are used in many single-family, multi-family, commercial, and institutional applications. The R-Control system is a faster, stronger, greener way to build and meets the demands of ICC-ES, IECC 2012, NTA, PSF, and UL. FSC OSB, termite and mold and mildew resistant panels are available on request. R-Control SIPs will help you achieve the most energy efficient and time efficient building practice. We provide you the framing, sheathing, and insulation in a one-step application. Building with R-Control SIPs reduces on site labor and provides unmatched energy savings while meeting today’s strict energy code requirements!

We began manufacturing R-Control SIPs in 1984 and continue to lead the industry with the most advanced state of the art manufacturing equipment and processes. We are committed to manufacturing the best Structural Insulated Panels available.

Learn more about some of the products we offer:


R-Control SIPs Foam-Control EPS EPS Geofoam Roofing Diamond Snap Forms