insulated commercial door

Clopay introduces new commercial door for extreme climates

3-inch Three-Layer Polyurethane Insulated Model 3730 Commercial Door for Extreme Climate Control and Durability CINCINNATI (December 6, 2012) — Clopay is introducing a three-inch polyurethane insulated upward acting sectional door with an R-value of 22.2. Designed for use in in cold storage facilities and other temperature sensitive climates, Clopay’s Model 3730 three-layer steel “sandwich”...