The Bilco Company’s Type D double-leaf roof hatch features a large opening that allows equipment to be easily installed or removed from a building. The roof hatches are custom fabricated to meet virtually any access opening requirement. The large access opening of the Type D roof hatch is often used to bring equipment through the building and onto the roof for installation during building construction. Type D equipment-access roof hatches are designed for weather-tight performance and safe and easy operation regardless of the cover size and weight. Products feature full EPDM gasketing, insulated covers and curb, and an overlapping cover design to ensure energy efficiency and performance. Each product is designed with lift assist that is specifically engineered to the cover size and weight to allow for easy, one-hand operation. For more information, visit www.bilco.com.