Sagging Garage Roof
Most of the time it will have something to do with poor construction.
Sagging garage roof. A ridge that droops in the middle forming that unintentional western design feature likely is due to undersized rafters and or missing or inadequate internal bracing rafter or collar ties. Prevent this unfortunate series of events by bracing your rafters to make them sturdy and resistant to snow loads and wind. In most cases a sagging roof is caused either by a broken rafter or roof decking but in some more severe instances a damaged or sinking foundation can be the underlying cause of the problem.
Typically they are lapped and then toe nailed together in its center so that the correct length can be achieved. You will need to get up into your attic and examine the roof carefully in order to discover the underlying cause. 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.
Try to rope in a friend or two as the beams can be heavy and try to plan your renovation project for a sunny weekend. Sagging rafters are a sign that a house is in serious trouble. Then put a temporary plate on top of the ceiling joists and jack up to height.
In this video i will attempt to explain a few reasons why your roof ridge or other parts of your roof might be sagging. When the roof framing is assembled two ceiling rafters are often joined together to create a longer span. Follow the simple steps below to effectively repair a garage roof that is sagging.
The garage is 20x20 with 2 single doors in the front. Use your string line to determine how much the roof need to go up. Add 2x4s from the rafters to the ceiling joists for permanent support.
If your rafters are still sagging a bit and it is causing your roof to dish out a little in the center of the roof sides add a 2x4 that goes all the way across the rafters in the center of the length of the rafters. A sagging garage roof repair isn t an overwhelming task but it is best to get the job done before it becomes a major roof replacement. A sagging roof can come in one of a few classic forms each with its own cause.
A sagging roof line may original from the ceiling s horizontal rafters.