Fixing Sagging Roof Over Garage

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.

Fixing sagging roof over garage.

Step 4 strengthen the beams. If necessary use something to force the roof up while you work the beams into place and fasten them. With a pair of rafters pushed apart to straighten the sagged roof a new mid span cross tie will be nailed in place. The first step is to the basement first.

Sagging rafters can lead to serious problems with the entire roofing system. 1 2 inch thick angle iron. I prefer the term mid span cross tie to collar tie because i associate collar ties with placement high closer to the ridge. If the line does not continually follow the bottom of the beam and the bottom of the beam is below the line the beam is sagging.

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.