How To Repair An Old Sagging Roof

You ll need a steel l channel to get your rafter or truss back into shape.

How to repair an old sagging roof. The first step is to find out how many rafters are sagging and if anything else is damaged. However it is important to fix the rafters before doing any other work to the roof. In many cases you ll need to fix sagging trusses or rafters to repair your roof. You may find that several are in need of straightening and that some of the sheathing must be replaced.

Fixing a sagging roof by bolstering the beams replacing sheathing. If the sagging roof is due to rotting or warping roof decking the repair will be much easier. Your goal is to strengthen and reshape the roof through means of wooden braces 2x6 lumber possibly new or added purlins and maybe a come along manual winch. Being nervous about a sagging roof is understandable.

How to fix a sagging roof line. No matter what the reason when you see a house with a sagging roof it tends to make you nervous even if you don t know precisely why. Determining the problem determine where the sag is in your roof in relation to your attic. Perhaps the sheathing is the problem with your sagging roof.

Before you try this method you need to determine whether or not the sheathing that remains is strong. How to fix sagging roof trusses or rafters. In a stick frame non truss sloped roof these issues usually cause the roof ridge to sag in the middle giving it a swayback look but can also cause one side of the roof to sag. You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.

Also inspect the metal or plywood gusset plates used where your wood meets on a truss. Screw a 2x4 about 12 long. If that is the case you need to. Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your.

Most people without any construction experience know that a roof should be flat and not wavy or sagging. Check the ceiling for sagging by attaching a string on one end of the beam and run it along the. Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. The first step is to the basement first.

You will use a hydraulic floor jack to lift a long 2x6 against strategic points along the roof to nudge the roof back into shape.