Gambrel Roof Connector Systems

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth.

Gambrel roof connector systems.

The system was created so that people could work with steel lumber in their geodesic designs easily. The gm20 gambrel has a 5 12 pitch and 23 degree slope on the upper section and 7 12 30 degree on the lower section. They can be used for any size of dome. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape.

Or maybe it s the time worn character of rusty steel plates weathering beautifully against 100 year old. The gussets top in the gambrel system above designed by the author create a three hinged arch out of each frame which simplifies the load analysis significantly. Hardware is required at only three points as opposed to nine different joints in the roof assembly of a traditionally framed gambrel making the system considerably easier to build. These were designed for solid long term construction in areas subject to sever weather.

The upper rafters have a heel that raises the upper roof forming a fascia at the joint between the lower and upper roofs with the height of the heel dependent on the size of the upper fascia. The gm40 gambrel has an approximate 4 12 pitch and 17 degree upper section and a 7 12 30 degree lower section the gb5630 has a 7 12 pitch and 30 degree slope. The varied roof lines that are possible with stick frame homes can also enhance curb appeal and market value for some homebuyers. Simpson strong tie category roof truss and rafter connectors ties and straps for cold formed steel construction.

Our newest connectors have been developed to make stick frame connections in roofs as intuitive as possible to ensure the construction of safer stronger homes. If a gambrel fits in well with the historical character of the area in which you re building then it s a win all around. Maybe it s the pop of silver bolts on massive black steel plates against warm douglas fir timbers. A gambrel roof on the other hand not only gives you very nearly a full second story but it also creates a small attic in the upper triangular portion of the roof where you can run wires and ductwork.

Each hub has two connectors and the cold formed steel framing members are utilized for maxium strength of the structure. A gambrel roof is a popular roof style on many contemporary barns and sheds. Raised custom gambrel only the raised joint supports the upper rafters on walls with the lower rafters butted against wall studs. This gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon.