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Big Sky Insulations

Foam-Control EPS mean control, not compromise.

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 below grade insulation applications, continuous wall insulations, roofing and taper insulation, protective packaging, original equipment manufacturers (OEM), and flotation.

R-Control SIPs mean control, not compromise.

Big Sky R-Control SIP roof, wall, and floor panels are produced using 8′x24′ pre-fabricated panels. Our products are used in many custom residential, commercial, affordable, multi-family applications. The R-Control system is a proven alternative to conventional building methods meeting or exceeding demands of ICC-ES, IECC 2012, NTA, PFS, and UL. FSC recognized OSB and termite, mold, and mildew resistant panels are also available. R-Control SIPs allow you to achieve the best building results with an engineered system. We provide you the framing, sheathing, insulation, and vapor barrier 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!

With over 32 years of experience and advanced computer driven fabrication, Big Sky R-Control produces exact 3D shop drawings and custom cut R-Control SIPs. We provide technical training, plan review and site assistance and 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