Sagging Porch Roof Roofing
Another reason your roof may be sagging is because it can t handle the weight of the roofing material.
Sagging porch roof roofing. A roofing pro may find that the roof is sagging due to rotten sheathing. Jack up the porch roof 7 3 4 inches to make room for the new taller beam images 1 and 2. This can happen for different reasons for example if the roof tiles were replaced at some point with a heavier alternative which has slowly weighed down the timber frame supporting the roof. Sagging rafters can lead to serious problems with the entire roofing system.
For example tile roofing weighs way more than your typical asphalt shingle roofing. If your home has converted from shingles to tile you may need to add structural bracing in your attic to hold the extra weight. If water has penetrated through shingles the plywood can warp weaken or rot so that the roof looks as if it s sagging between rafters. Now carefully remove the bracing and lower the porch roof on to the new beam images 3 and 4.
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. How to repair a sagging support beam. Cost skill level. Push up on the plywood until the foam is touching the underside of the roof decking.
That s how to fix a sagging roof. Learn how to install a two column design system to properly support a porch roof.