How To Fix A Sagging Porch Roof

Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.

How to fix a sagging porch roof.

In this case one corner of a neighbor s porch sunk about 1 5 inches over the last couple decades. My guess is that the entire porch roof will have to be replaced rather than having to piece together a fix. The corner was only being supported by one column. The sag wasn t horrible but it was definitely noticeable and it bugged the heck out of me every time i looked at it.

If not kept in good repair using water resistant materials and strategically applied coats of paint the key elements of a porch floors framing posts railings and decorative elements will deteriorate quickly. Well it turns out that fixing the sagging roof issue on my front porch was way easier than i had thought it would be. Some of the porch that isn t rotted might be able to be reused. 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 damaged roof. How to repair a sagging support beam. 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. So to begin i removed the existing counter flashing running about 5 courses up this was as easy as finding nails and prying.

Push up on the plywood until the foam is touching the underside of the roof decking. In raising the roof i knew was going to have to reset the roof s flashing as it meets a sidewall of the house. 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.

Porches are subject to the insidious force of all weathers from driving rain and bleaching sun to wind driven snow and high humidity. A bottle jack is a small hydraulic that uses a long handle to raise and lower support braces. I thought it was going to be some semi major construction removing the existing sagging beam and replacing it. This is how it looked just a few days ago.

That s how to fix a sagging roof. Move the braces into place on top of the bottle jacks image 3 then raise them till they support the roof. Things to consider with jack up a porch roof the prep.