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.
Roof rafer construction wall sag.
This article describes explains the directions of forces in roof structures illustrating downwards force horizontal thrust and the causes of rafter sags rafters that disconnect from the ridge or top plate and why a sagging roof pushes the building walls outwards at the wall top.
Some roofs sag because of decay to the inside beams and sheathing.
We include photographs of collapsing wood framed roofs and photo sequences.
The beam is attached to both exterior walls and to the.
Sagging ceiling could be an indication of framing issues some of which could be related to the roof.
Roof sag or roof collapse forces.
Sagging rafters can lead to serious problems with the entire roofing system.
Some roof framing designs include the use of a strut or beam that runs perpendicular across the bottom of the rafters inside the attic.
Sagging rafters may be the result of having framed the roof with lumber of dimensions smaller than current building standards such as using 2x4s or 2x6 s or there may be damage to the framing from insects or rot.