How To Repair Rotted Roof Joist Ends

Lock them in place with screws.

How to repair rotted roof joist ends. 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. If you are using an extension ladder ask your helper to. 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.

Place a stepladder or extension ladder under the rafter end with the most damage. Measure from the end of the rafter tail to the area of good wood with a tape measure. The easiest way to repair joist ends is to fit joist repair plates. They have the advantage that joists are extended back into or onto the original bearing.

Cut the rotten spot out. This part of. The new end is then fitted with the bars going in to slot. 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. You want to cut about 6 inches past where the rot ends just to make sure no more moisture will get through. How to replace rotted rafter ends on a gable roof. There are a number of ways to repair structural timber.

Cut out the section of the roofing. Removing termite damaged rafters and starter boards. A vertical slot is machined in the joist. A new joist end is drilled to so two or more steel bars can be glued resined in.

To eliminate the possibility of holes in between joists you can use wood glue affiliate link to amazon. Basically the idea is to cut the ends off and affix a new piece of timber to the wall. Pressure treated stuff won t let the water flow through the wood as well as straight regular wood. Make sure your screws are big enough aim for twice the board s width.

I replace the damaged wood and prep for the new roof installation. The rotten end of the beam joist is cut off.