Big Sky R-Control manufactures expanded-polystyrene structural insulated panels in Montana for residential, commercial and specialty building envelopes. The company prepares panel layouts and shop drawings, incorporates project openings and electrical chases and provides technical or on-site guidance for assembly.

It primarily serves western projects through direct coordination with designers and builders. Buyers should confirm service territory, stamped engineering, connection packages, freight, crew support and locally completed roofing, cladding and interiors.