Profile: Rough Brothers Inc. is specialized in designing, engineering, manufacturing, and installing greenhouses and related systems. We provide greenhouse structures to the growers, curators, and researchers in the industry. Our roof-vented poly arch is suitable for natural or fan ventilation. The bottom rail of the vent opens above the ridge, eliminating trapped hot air. An additional benefit of the raised bottom rail is the ability to easily vent regardless of outdoor conditions. R-house uses a combination of 1" insulated glass and safety glass with an aluminum rigid frame substructure. This combination provides for high light transmission and optimal energy efficiency. Standard truss designs permit clear-span widths in either free-standing or gutter-connected combinations. Ridge vents and sidewall vents are both available, and require no rack area penetrations through the vent screen work. The greenhouse configuration can be A-frame, lean-to, sawtooth or custom design.