Garage Roof Trusses Sagging

As demonstrated by the dent in my pickup s hood vibrations from the garage door opener can cause items to shimmy around and eventually crash down onto your car or you.

Garage roof trusses sagging. The first step is to find out how many rafters are sagging and if anything else is damaged. When all the trusses are installed and the first row of decking is on this brace is removed. This repair will keep the trusses from sagging. If you have traditional site built roof framing your storage capacity depends on the design of the framing.

If so i bet the installers used 1 2 in. Are doors sticking or jambs out of square. If the framing is sound and problems are not found elsewhere but the roof still sags the problem might have originated because of poor installation of the plywood sheathing or shingles. To hold them up until the decking of the roof is placed on top a 12 foot 1 inch by 4 inch piece of lumber is used.

Typically they are lapped and then toe nailed together in its center so that the correct length can be achieved. Finally make sure stored items are securely locked in place. However a bigger problem is nailing the new web member to the ridge peak of the truss and there will be 2 members nailed in this location. Drywall instead of 5 8 in.

Half inch drywall can sag if it s hung under roof trusses that are spaced every 24 in. If your ceiling drywall is sagging between joists sometimes called pillowing it s probably on the top floor and attached to the roof trusses. Even ceiling cracks can be caused by damaged trusses or downward pressures. So you should start by inspecting the roof from the under side or attic.

When the framing of the roof is put together quite frequently two of the ceiling rafters will be fixed together as this will create a much longer span. Should the bottom cord of one or more trusses be sagging or damaged it may be reflected in a sagging ceiling or if the roof is over loaded to heavy then the downward pressure may cause the sagging. Then slowly allow the trusses down. One good thing about wood construction is that failures occur slowly and with a crack or split in the wood.

You may find that several are in need of straightening and that some of the sheathing must be replaced. A sagging roof line may original from the ceiling s horizontal rafters. However it is important to fix the rafters before doing any other work to the roof.