Product details:

Johnny Jacks are sold individually. In order to complete a working system, two Johnny Jacks must be purchased. The Johnny Jack is a complete system for staging materials on steep pitch roofing applications including slate, tile, asphalt, and solar panels without covering anchor screws. Save time and labor with this innovative design. Designed by a contractor and proven on the roof. This system is used to install interlocking shingles where standard roof brackets cannot be used.