Replacing Rotten Roof Joists

You can poke the questionable board.

Replacing rotten roof joists.

Measure the dimensions of the old rafters beneath your roofing surface. Get rid of the rotten spot. Find the nasty spot. Short videos and slideshow documenting our attempt at replacing rotten joists and flooring in a kitchen of a house we are currently renovating.

Basically the idea is to cut the ends off and affix a new piece of timber to the wall. 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. This part of. 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.

Use your tape measure to record the distance of both rafter legs. Slide one of the newly cut rafter legs into position directly next to the old rafter. There s lots of different methods for repairing or replacing rotten joists but the one we decided to go with was to install wall plate. The joist plate is bolted to the timber making the joint b as strong as the original joist.

These plates are a quick and neat solution for joist ends that aren t going to be seen. I m currently refurbishing my house and i thought i may as well document it for the sake. The rotten section doesn t seem to be taking any weight though as the joist hanger above it is loose and there is nothing else resting on the rotten piece. Cut the rotten spot out.

Different sizes are available to suit the joist section and the amount the joist will have to be cut back. Repairing a rotted wall or floor joist step 1. Would it be possible to cut out the rotten section of joist and replace it with sound wood or provide extra support for the rotten section without replacing the whole joist. This video is about changing a couple of rotten joists in my house.

This can be easy or difficult. How to replace the rafters without removing the roof. The basics of the process are as follows.