Replacing Rotted Roof Trusses

The rotten wood will come away easily.

Replacing rotted roof trusses. 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. Check the old trusses. The basics of the process are as follows. Remove the rotted wood with a chisel and pry bar.

Slide one of the newly cut rafter legs into position directly next to the old rafter. 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 these have only small portions with rot you can repair using the boards. Measure the dimensions of the old rafters beneath your roofing surface.

Measure the length of framing wood needed with a measuring tape. If the roof truss has a small crack you will be using the two wooden boards to patch it up but if the crack is much more severe you should use the steel plates because they offer much stronger support to the damaged truss. Discard the wood in a garbage bin as you work to. The first thing you need to do is to assess the damage.

Use your tape measure to record the distance of both rafter legs. If the entire rafter was rotten use the. How to replace the rafters without removing the roof. Cut out the section of the roofing.

To reinforce the ends of the trusses 3 4 inch plywood gussets were to be attached to both sides of each truss with 10d nails 3 inches on center on all chords. Things you ll need stepladder or extension ladder helper tape measure 2 by 6 inch boards salt treated circular saw speed square reciprocating saw drill with 1 2 inch bit 1 2 inch wooden dowels wood glue hammer.