Climb into the attic and familiarize yourself with your roof s structural anatomy.
House sagging roof.
Fixing a sagging roof by bolstering the beams replacing sheathing.
If that is the case you need to.
So what happens with those elements is that you get more sagging and delamination of the roof sheathing.
A wavy or sagging roof can be the result of one of several issues.
What causes a sagging roof line.
Sagging rafters can lead to serious problems with the entire roofing system.
Sagging ceiling could be an indication of framing issues some of which could be related to the roof.
When the roof framing is assembled.
Before you try this method you need to determine whether or not the sheathing that remains is strong.
Structural problems can be due to.
In a 30 year old house very typically the roof sheathing is thinner than in a more modern house.
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.
Excess weight from snow and design flaws.
Perhaps the sheathing is the problem with your sagging roof.
Every roof is designed to support a specific maximum weight and anything above.
Should the bottom cord of one or more trusses be sagging or damaged it may be reflected in a sagging ceiling or if the roof is over loaded to heavy then the downward pressure may cause the sagging.
Improper design or construction or modification environmental factors such as age damage to the roof s structural elements failures of other supporting systems including the walls and house foundation.
Foundation problems with the house two or more roofs heavier material on a new roof damaged support system improper engineering poor workmanship.
Check the ceiling for sagging by attaching a string on one end of the beam and run it along the bottom edge of the beam.
And in a 30 year old house you tend to not have very much ventilation.
It s above your head.
Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging.
Rain and snow can quickly damage a roof that isn t optimally designed and well.
Causes of a sagging roof and repair options water damage to a weak roof surface.
Fixing a truss or rafter.
Another type of.
Also inspect the metal or plywood gusset plates used where your wood meets on a truss look for damage that includes cracks rot breaks and any other impairment.
Step 1 the first step is to the basement first.