Uneven Roof Trusses

If one support is as little as 1 4 inch lower or higher than the one next to it you might end up with an uneven roof.

Uneven roof trusses.

If needed shim trusses or rafters to level the nailing surface and install blocking to straighten any warped or bowed top chords of trusses or rafters. The bottom image illustrates proper horizontal storage with blocking placed at a suffficient height beneath the stack of trusses to minimize lateral bending and to lessen moisture gain from the ground. From time to time an attic rafter will split along a knot typically after having a new roof installed because of the workers walking around on it. I drew in a truss on the left going from the roof edge to over the bearing interior wall.

Pre manufactured stock trusses are constructed with spruce pine fir spf or southern yellow pine syp lumber. Obviously this is not a good situation as it can cause the entire roof to fail if not addressed. Roof trusses may be crucial for a garage s integrity and stability. The top photo above shows trusses being improperly stored on uneven ground.

They are designed at a 4 12 pitch to be spaced 2 foot on center. These consist of 2 rafters that will hold up the structure s roof. Then i drew another truss starting at the end of the first truss and going to the edge of the roof on the right. Roof trusses will hold of most of the load and will ensure the garage s stability.

These trusses the meet building code criteria as specified by structural building components of america sbca and the truss plate institute tpi. Repairing this is called scabbing. Click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to the compare list compare click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to the compare list add to list click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to your list. Also different architectural styles will use the same type of roof.

How to build roof trusses for a shed.