Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem.
Roof rafer construction wall sag.
Rafter ties rafter ties on gable type roofs are usually horizontal wood pieces often 2 4 s or 2 6 s that help keep the exterior wall tops from spreading outwardly.
Rafters are nailed to the plate.
Roof rafter decking sagging.
Often the framing can be bolstered and beefed up internally but if the roofing material needs replacement anyway it may be best to tear off the old sheathing and install larger rafters while the roof.
Check for damage to rafter ties as well as their connection to the exterior walls.
The tops of inclined rafters are fastened to the ridge or another rafter depending on the type of roof.
Rafters rest on the top wall plate.
Without the proper support of rafter ties or a structural ridge a typical gable or sloped roof will sag downwards while pushing the building walls outwards towards a catastrophe.
They vary in size depending on length and spacing.
Normally in the bottom third area of the rafters or sitting on the exterior wall top plate.
Decay can occur over time due to a number of reasons including leaks in the roof or leaks from guttering or downpipes wet rot or even insect attacks such as termites damaging the ends of the bearings.
This article describes a diy repair project using a site built spreader to straighten sagged roof rafters and decking.
The beam is attached to both exterior walls and to the.
Remedies for a sagging roof there are a number of remedies for traditional rafter style roof frames depending on the problem and its severity.
It is always better to have a large rafter rather than be concerned with a sagging roof.
Some roofs sag because of decay to the inside beams and sheathing.
If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.
Some roof framing designs include the use of a strut or beam that runs perpendicular across the bottom of the rafters inside the attic.
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.
Rafters rafters make up the main framework of all roofs.
Sagging rafters can lead to serious problems with the entire roofing system.