How To Repair Rotted Roof Joist Ends

Pressure treated stuff won t let the water flow through the wood as well as straight regular wood.

How to repair rotted roof joist ends.

I replace the damaged wood and prep for the new roof installation. This part of. Cut the rotten spot out. Removing termite damaged rafters and starter boards.

A new joist end is drilled to so two or more steel bars can be glued resined in. The basics of the process are as follows. Lock them in place with screws. Cut out the section of the roofing.

The easiest way to repair joist ends is to fit joist repair plates. To eliminate the possibility of holes in between joists you can use wood glue affiliate link to amazon. 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.

This part can be a little hard depending on what wood you are working with. Make sure your screws are big enough aim for twice the board s width. Measure from the end of the rafter tail to the area of good wood with a tape measure. There are a number of ways to repair structural timber.

Place a stepladder or extension ladder under the rafter end with the most damage. 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. Basically the idea is to cut the ends off and affix a new piece of timber to the wall. If you are using an extension ladder ask your helper to.

The new end is then fitted with the bars going in to slot. You want to cut about 6 inches past where the rot ends just to make sure no more moisture will get through. Put the new boards where the ones with dry rot used to be. These come as a pair of l shaped metal plates complete with screws and instructions.

A vertical slot is machined in the joist. Short videos and slideshow documenting our attempt at replacing rotten joists and flooring in a kitchen of a house we are currently renovating.