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How to fix sagging roof on old house.
Most people without any construction experience know that a roof should be flat and not wavy or sagging.
The other thing that causes this type of sag is an excessively long roof rafter without proper.
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.
You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.
How to straighten sagging roof rafters.
Determine the extent of damage.
If the sagging roof is due to rotting or warping roof decking the repair will be much easier.
To repair major foundation damage you ll need to talk with a construction professional.
Check the ceiling for sagging by attaching a string on one end of the beam and run it along the.
How to fix a sagging roof line.
With the inverted hinged truss in place a vertical wedge can be used to bend the sagged rafter upwards.
Also inspect the metal or plywood gusset plates used where your wood meets on a truss.
Fixing a sagging roof by bolstering the beams bolstering the beams of your roof is another solution to repairing a sagging roof however it is often something that requires assistance from another able bodied person since beams can be extremely heavy.
And in a 30 year old house you tend to not have very much ventilation.
And a different approach is needed at the chimney in order to add rafter support to straighten the sagged roof.
If your roof is more than 30 years old rebuilding it will be the most effective approach to dealing with sagging.
The first step is to the basement first.
Being nervous about a sagging roof is understandable.
At the chimney the homeowner designed an inverted truss to straighten the sagged rafters.
Typically the roof sheathing is about three eighths of an inch thick.
Problems with the roof itself aren t the only reason a roof might sag.
Determining the problem determine where the sag is in your roof in relation to your attic.
Screw a 2x4 about 12 long.
Drill holes in angle iron.
Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your.
So what happens with those elements is that you get more sagging and delamination of the roof sheathing.
If your foundation has shifted or sunk your walls and roof might have shifted along with it.
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.
