If the sagging roof is due to rotting or warping roof decking the repair will be much easier.
Fix sagging shed roof.
When i bought my house the garage roof had a sag.
The amount of time required to repair as shed roof is on a par with building a new one and the cost of materials less than 1 10th.
If you have just stepped outside your house and realized that your roof is no longer straight this could signal a problem.
This article describes a diy repair project using a site built spreader to straighten sagged roof rafters and decking.
Also when purchasing a new shed it is worth considering the repair factor 15 years down the line.
Roof rafter decking sagging.
When you get down to it there are hundreds of different types of repair you could do to a shed roof.
When considering what to do about sags in a roof start by noticing if the sag is in sheathing between rafters page top photo0 or sagging along the length of the rafters.
Fixing a sagging roof as soon as you spot it is very important otherwise you could find that the problem will only worsen over time and in the end you may need to have the entire roof replaced which could be extremely costly not to mention a lot of hassle.
But they fall into 3 basic categories.
Outer layers such as shingles and underlayment sheathing or plywood and roof rafters.
Sagging rafters can lead to serious problems with the entire roofing system.
I have a 16x12 shed the home depot variety that came with the house when we moved in 4 years ago.
If your door has diagonal braces it s unlikely to be the door that s sagg.
If you notice that there is a visible dip in your roof chances are you have a problem with one or several rafters and you may soon be facing more issues like water leaks bowed out walls or your roof caving in on you.
You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.
To me this indicates that as the ridge 2x4 has sagged the bottoms of the joists have pushed.
After that use a piece of lumbar strapping to keep the plywood in place until you can get a roofing repair expert to fix it.
This cost saving is a big plus for any one with basic diy skills and in a similar situation.
That s how to fix a sagging roof.
Also notice the eaves are bowed upward in the middle.
Stabilizing a sagging roof with trusses joists.
Types of shed roof repairs.
I m guessing the shed is about 10 years old.
The roof is sagging a few inches in the middle.
Push up on the plywood until the foam is touching the underside of the roof decking.
