It may also include replacing roof sheathing.
Roof rafter repair.
Repeat the process for the joist beneath your old roof rafter.
Step 1 measure the damaged rafter.
A cracked roof rafter can create a sagging and unsightly roof.
A cracked roof rafter needs to be repaired and can be done byf an experienced do it yourselfer.
When considering what to do about sags in a roof start by noticing if the sag is in sheathing between rafters page top photo0 or sagging along the length of the rafters.
Regardless of the cause a split rafter must be repaired to ensure the integrity of the roof s support system.
Apply a resilient weatherproof coating to the new pieces then secure them using stainless steel nails.
Use your tape measure to record the distance of both rafter legs.
This board is a section of lumber that is the same thickness as the rafter and 2 feet longer on each side of the damaged section.
From time to time an attic rafter will split along a knot typically after having a new roof installed because of the workers walking around on it.
A cracked or damaged rafter due to a defect in the wood or an impact from an outside force may be able to be repaired preventing a very costly roofing repair.
Before you can purchase the l channel you need to know the size of the rafter.
Measure the dimensions of the old rafters beneath your roofing surface.
Start by prying away the bottom and sides of the old eaves and cutting new materials to match.
Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions.
Repairing this is called scabbing.
Obviously this is not a good situation as it can cause the entire roof to fail if not addressed.
Unless you have advanced carpentry skills you may not be able to fix a rafter with serious decay problems.
Although the rafter must be replaced if it is completely broken smaller areas of damage can be repaired through the application of a scab board.
If you see a rotted rafter you should take steps to identify the source of moisture that is causing the decay.
Rafters can also be damaged by a blow to the roof from falling branches.
In terms of repair fixing a split is not particularly complicated but the repair.
An l channel that is 1 by 1 and at least 2 feet long should be adequate for most rafters.
This includes repairing any leaks in the roof above the rafter.
