How To Fix A Sagging Porch Roof

The sag wasn t horrible but it was definitely noticeable and it bugged the heck out of me every time i looked at it.

How to fix a sagging porch roof.

First i cleared out a level area under the porch next to the sinking support column. This is how it looked just a few days ago. That s how to fix a sagging roof. The corner was only being supported by one column.

Move the braces into place on top of the bottle jacks image 3 then raise them till they support the roof. In raising the roof i knew was going to have to reset the roof s flashing as it meets a sidewall of the house. How to repair a damaged roof. 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.

Next place your piece of plywood and styrofoam foam side up against the damaged roof decking. For less than 20 and a couple hours time i was able to level the sinking side of the porch. A bottle jack is a small hydraulic that uses a long handle to raise and lower support braces. So to begin i removed the existing counter flashing running about 5 courses up this was as easy as finding nails and prying.

Well it turns out that fixing the sagging roof issue on my front porch was way easier than i had thought it would be. This will hold the weight of the porch roof while replacing the beam. 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. Things to consider with jack up a porch roof the prep.

I won t speculate upon repair costs because i don t have a clue about the quantity and quality of materials as well as your local labor rates. In this case one corner of a neighbor s porch sunk about 1 5 inches over the last couple decades. Push up on the plywood until the foam is touching the underside of the roof decking. Porches are subject to the insidious force of all weathers from driving rain and bleaching sun to wind driven snow and high humidity.

Sagging rafters can lead to serious problems with the entire roofing system. My guess is that the entire porch roof will have to be replaced rather than having to piece together a fix. How to repair a sagging support beam.