ProTerra Tunnel Doors
ProTerra System’s Swirl Incoming Air for Better Mixing with House Air
- Cyclone-shaped air movement generates desirable airflow at bird level throughout the poultry house.
- No more dead zones at side- and end-walls, typical of curtain sidewall or double door houses.
- ProTerra® Tunnel Doors insulate approximately eight times better than a curtain during winter (when completely closed), saving energy.
- During tunnel-assist, cold air is directed away from birds until it has mixed with house air.
Design Innovation
- The laminated, composite door panel of 1.5-inch (38-mm) thick extruded foam insulation is sandwiched between thick, pebbled fiberglass-reinforced plastic.
- Structure of door provides greater rigidity and dent resistance.
- Wall-mounted, continuous “P”-shape seal is more forgiving of house imperfections for a tighter seal when door is closed and does not affect airflow when door is open.
- Complete door assembly is pest- and corrosion-resistant (composite door, stainless steel hinges and nylon/galvanized hardware).
- Modular panel design allows maximum door size flexibility to match house sidewall openings.