Warped Roof Trusses

Sagging rafters can lead to serious problems with the entire roofing system.

Warped roof trusses.

For homes with a unique roof shape trusses are the best choice for supporting a roof. In the photos shown the lumber looks like typical framing lumber. 2 roof support broken the roof truss or rafter could be warped or literally broken. This problem occurs occasionally with roof trusses.

When a roof shifts it can make windows and doors difficult to open and close. They have issues for a wide variety of reason including damage from wind storms overloading from ice and snow leaks etc. One of the most common causes of roof issues are problems related to the rafters or trusses. Therefore giving them a good look is critical when addressing sagging bowed or wavy roofs.

If a seasonal crack opens along a wall somewhere in the middle one or both truss ends are rising or the truss is arching. It is also very important to find out why the trusses bowed in the first place you may be correct in your analysis that the trusses should have been cross. A bowed truss floor joist or beam looses a great deal of it s strength. This is rare with an engineered truss system but i do occasionally see some that have broken on occasion.

The first case is a foundation problem. Warped truss member from what i have seen in the past the wood used to make trusses is high quality lumber no knots 4 corners clear smooth grain. Compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list sku 1889754. Trusses offer close fabrication tolerances that benefit homes with complex roof framing configurations.

Stabilizing a sagging roof with trusses joists. Its more common to see a bowed rafter. Trusses are designed to carry the weight of the roof on the ends that is the outer walls. When i bought my house the garage roof had a sag.