Gambrel Roof Gusset Size

Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon.

Gambrel roof gusset size.

Enter the size of the upper fascia board or select a lumber size from the dropdown list. The gambrel spans 10 feet. The size of the roof dictates the number of trusses required for completion. Entering 0 x 0 in the fields will.

Analyzing the gusset system. With your first truss measuring out ok its time to cut and attach gusset plates. For the gambrel truss we will need 6 total gusset plates made out of 1 2 material like osb or plywood. Taken together the plywood pieces have the same thickness as the rafters themselves.

Using this method it will take under an hour to cut all the 1x4 strips and gusset plates. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. Nail on gusset plates. You must also use glue construction adh.

Gambrel roof a gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. Nail gusset plates to the truss at all 3 connection spots with 8d common nails using 10 per connection 5 per each truss end. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. The gusset system relies on a pair of 3 4 inch fir plywood gussets at each joint with the rafters sandwiched in the center.