A ridge that droops in the middle forming that unintentional western design feature likely is due to undersized rafters and or missing or inadequate internal bracing rafter or collar.
Sagging house roof.
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.
Failures of other supporting systems including the walls and house foundation.
Low quality materials are more prone to.
Step 1 the first step is to the basement first.
Less common causes of a sagging roof.
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.
A sagging roof can come in one of a few classic forms each with its own cause.
Fixing a sagging roof as soon as you spot it is very important otherwise you could find that the problem will only worsen over time and in the end you may need to have the entire roof replaced which could be extremely costly not to mention a lot of hassle.
Most people without any construction experience know that a roof should be flat and not wavy or sagging.
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.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
Sagging roof lines can originate with the horizontal ceiling rafters.
Sagging rafters can lead to serious problems with the entire roofing system.
And in a 30 year old house you tend to not have very much ventilation.
If your roof started sagging after you switched to heavier roofing material such as by replacing wood shingles with clay tiles you ll probably need to go back to the lighter material.
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.
If you have just stepped outside your house and realized that your roof is no longer straight this could signal a problem.
Being nervous about a sagging roof is understandable.
The other thing that causes this type of sag is an excessively long roof rafter without proper bracing and in old house that s not so unusual.
So what happens with those elements is that you get more sagging and delamination of the roof sheathing.
Straighten out your old house s sagging roof and get rid of those cracks in the wall with these easy to follow steps.
That s how to fix a sagging roof.
If the line does not continually follow the bottom of the.
