This roof bracket allows you to move around safely when installing or repairing a pitched roof. It adjusts in 3 positions to adapt to a roof pitch of 7/12 up to 24/12. Easy installation: just attach the brackets (using at least 3 nails of 4 in) to the roof rafters and attach a plank to them. The planks must exceed the bracket by a minimum of 6 in. and a maximum of 9 in at each end and must also be secured to the bracket using a minimum 3 in nail. Its steel structure covered with baked powder paint ensures great durability and excellent resistance to rust. Place every 6 ft maximum. This product is designed to support one person up to 6 ft. It is not designed to support building materials.