Replacing Rotten Roof Joists

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

Replacing rotten roof joists. Repairing a rotted wall or floor joist step 1. This part can be a little hard depending on what wood you. Cut the rotten spot out. This video is about changing a couple of rotten joists in my house.

Find the rotten spots. 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. 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. Different sizes are available to suit the joist section and the amount the joist will have to be cut back.

How to replace the rafters without removing the roof. This part of. Get rid of the rotten spot. Slide one of the newly cut rafter legs into position directly next to the old rafter.

I m currently refurbishing my house and i thought i may as well document it for the sake. You can poke the questionable board. 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. The rotten timber should be removed first and the end of the joist treating to discourage any further rot.

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. 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. Measure the dimensions of the old rafters beneath your roofing surface.

Use your tape measure to record the distance of both rafter legs. 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 can be easy or difficult.