Battic Door Energy Conservation Products DeluxeR-42 is an attic access door system designed to provide easy access to your attic while maintaining energy efficiency. With its R-42 insulation value, it helps to keep your home warm in the winter and cool in the summer, reducing energy costs. The door is constructed with a durable aluminum frame and features a weatherstripping seal to prevent air leakage. It also has a spring-assisted opening mechanism for easy operation and a safety latch to keep it securely closed.