How To Repair Rotted Roof Joist Ends

The basics of the process are as follows.

How to repair rotted roof joist ends.

Put the new boards where the ones with dry rot used to be. This part of. Lock them in place with screws. The rotten end of the beam joist is cut off.

You want to cut about 6 inches past where the rot ends just to make sure no more moisture will get through. Pressure treated stuff won t let the water flow through the wood as well as straight regular wood. These come as a pair of l shaped metal plates complete with screws and instructions. Cut out the section of the roofing.

A new joist end is drilled to so two or more steel bars can be glued resined in. 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. 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.

Measure from the end of the rafter tail to the area of good wood with a tape measure. The new end is then fitted with the bars going in to slot. 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.

A vertical slot is machined in the joist. 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. How to replace rotted rafter ends on a gable roof. Short videos and slideshow documenting our attempt at replacing rotten joists and flooring in a kitchen of a house we are currently renovating.

Place a stepladder or extension ladder under the rafter end with the most damage. Removing termite damaged rafters and starter boards. Cut the rotten spot out. 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. Make sure your screws are big enough aim for twice the board s width.