How To Repair Rotted Roof Joist Ends

Measure from the end of the rafter tail to the area of good wood with a tape measure.

How to repair rotted roof joist ends.

Cut out the section of the roofing. Basically the idea is to cut the ends off and affix a new piece of timber to the wall. To eliminate the possibility of holes in between joists you can use wood glue affiliate link to amazon. Make sure your screws are big enough aim for twice the board s width.

There are a number of ways to repair structural timber. Lock them in place with screws. If you are using an extension ladder ask your helper to. This part can be a little hard depending on what wood you are working with.

I replace the damaged wood and prep for the new roof installation. These come as a pair of l shaped metal plates complete with screws and instructions. Place a stepladder or extension ladder under the rafter end with the most damage. The easiest way to repair joist ends is to fit joist repair plates.

The basics of the process are as follows. Pressure treated stuff won t let the water flow through the wood as well as straight regular wood. A vertical slot is machined in the joist. You want to cut about 6 inches past where the rot ends just to make sure no more moisture will get through.

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. 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. Short videos and slideshow documenting our attempt at replacing rotten joists and flooring in a kitchen of a house we are currently renovating. They have the advantage that joists are extended back into or onto the original bearing.

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. A new joist end is drilled to so two or more steel bars can be glued resined in. The new end is then fitted with the bars going in to slot. Cut the rotten spot out.

This part of. How to replace rotted rafter ends on a gable roof.