How To Repair Rotted Roof Joist

Short videos and slideshow documenting our attempt at replacing rotten joists and flooring in a kitchen of a house we are currently renovating.

How to repair rotted roof joist.

I used the same size board 2x6 and cut out one piece to replace the rotted piece. Put the new piece of wood in using screws that are twice as long as the thickness of the new wood. Ya put new wood in. Remove an area of the roof shingles from the edge of the roof to the upper line of the overhang using a 16 inch nail bar and hammer to pull the roofing nails.

Keep in mind that the joist extends through the wall. The basics of the process are as follows. Slide one of the newly cut rafter legs into position directly next to the old rafter. Cut out the section of the roofing.

The joist plate is bolted to the timber making the joint b as strong as the original joist. Inspect and assess the damaged section of timber and determine where it needs to be cut to prop the timber along it s length using suitably sturdy props such as acro props once supported cut off the damaged end leaving only solid un damaged timber now. To replace the joist you need to measure the entire length. Measure the dimensions of the old rafters beneath your roofing surface.

I replace the damaged wood and prep for the new roof installation. The rotten joist end is cut off and an angle cut is made to bottom of the beam to allow a new part to be bolted on a good distance from the fulcrum point. A new piece of timber is cut a to replace the damaged piece and the joists plates are positioned ether side of the joists with the end of the joist plate right up against the edge of the timber so it is the joist plate that site on the bearer a. How to replace the rafters without removing the roof.

However replacing the entire joist gives the home much better structural integrity. This part of. It s a traditional repair is low cost and can be finished to match the original joist. This repair technique did get some serious consideration and nearly won out.