You will attach the l channel to the rafter before you attempt to repair the rafter.
Roof raferts repair.
Generally a roof truss is composed of triangular shapes for proper support of the roof.
Sagging rafters can lead to serious problems with the entire roofing system.
This includes repairing any leaks in the roof above the rafter.
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.
The cost of repairs depends on the amount of structural damage and materials required to repair it.
Overview 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.
If you see a rotted rafter you should take steps to identify the source of moisture that is causing the decay.
Unless you have advanced carpentry skills you may not be able to fix a rafter with serious decay problems.
Cut away rotten or damaged rafters.
Examine the condition of the rafter the thick beam running the length of the overhang.
To increase the strength of your new and existing rafters and to help eliminate the chances of sideways movement consider installing a support board across the rafter endings on both sides of the roof.
If it shows signs of rotting water damage or other wear you ll need to chop it out using a reciprocating saw.
Set the l channel on the rafter and drill four pilot holes.
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.
Obviously this is not a good situation as it can cause the entire roof to fail if not addressed.
Repairing a roof truss often requires replacing or reinforcing wood in its construction.
You should attach the l channel only in the four holes furthest away from the damage.
Place a length of 2 by 6 inch wood on the underside of the rafter ends so it bridges several of them and nail it to each one from below.
Repairing this is called scabbing.
Assuming it s in good shape you can leave it in place and install the new materials around it.