Sometimes a roof can sag because it has become waterlogged and the internal structure is irreparably damaged.
Sagging roof ridge repair cost.
On average a roof lasts between 15 to 30 years depending on the design the materials used and your climate.
In most cases you would require the assistance of a roofing specialist or professional carpenter to either repair damaged joists or completely renew the entire roof.
This ranges from 200 to 600 and depends on how long the valley is how steep the slope of the roof and how many shingles actually need to be replaced.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
That s how to fix a sagging roof.
How to fix sagging roof trusses or rafters.
A roof frame might also have a shorter horizontal tie installed higher up on the rafters.
Problems with the roof itself aren t the only reason a roof might sag.
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.
Not all roofs will need completely replacing and it s worth doing an annual check to repair damage early.
The average cost of a totally new tiled roof is 4 952 read more about new roofing costs.
In many cases you ll need to fix sagging trusses or rafters to repair your roof.
On a real house roof the top ends of the rafters are nailed into the ridge board a long horizontal board that runs the full length of the roof creating the continuous ridgeline.
Sagging roof repair costs can vary if extra weight is the problem additional joists or rafters can be added to shore up the additional weight which can cost between 1 000 and 2 000 depending on how many are needed.
Push up on the plywood until the foam is touching the underside of the roof decking.
More than one valley needing attention will raise cost but again the rate may go down per valley in this case.
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.
If your roof is more than 30 years old rebuilding it will be the most effective approach to dealing with sagging.
In the uk the average cost of repairing roof joists of a 3 bedroom home starts around 250 500 per beam.
Can your roof be repaired.
Use your string line to determine how much the roof need to go up.
You ll need a steel l channel to get your rafter or truss back into shape.
When also combined with thin 1 4 plywood or 3 8 thick roof sheathing we also sometimes find sagging even between rafters.
