How To Repair An Old Sagging Roof

Fixing a sagging roof by bolstering the beams replacing sheathing.

How to repair an old sagging roof.

Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. This may be problematic in winter months but allowing the roof to continue to sag can lead to greater problems such as a cave in. 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. Most people without any construction experience know that a roof should be flat and not wavy or sagging.

You may find that several are in need of straightening and that some of the sheathing must be replaced. Check the ceiling for sagging by attaching a string on one end of the beam and run it along the. Also inspect the metal or plywood gusset plates used where your wood meets on a truss. The first step is to find out how many rafters are sagging and if anything else is damaged.

Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your. Screw a 2x4 about 12 long. How to fix sagging roof trusses or rafters. The first step is to the basement first.

In many cases you ll need to fix sagging trusses or rafters to repair your roof. How to fix a sagging roof line. 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 use a hydraulic floor jack to lift a long 2x6 against strategic points along the roof to nudge the roof back into shape.

Perhaps the sheathing is the problem with your sagging roof. However it is important to fix the rafters before doing any other work to the roof. If that s what you re dealing with regarding your home take these steps to ensure your rafter or truss gets fixed properly. Being nervous about a sagging roof is understandable.

After your floor is straight it is time to concentrate on the next floor s ceiling. Before you try this method you need to determine whether or not the sheathing that remains is strong. 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. If that is the case you need to.

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