Replacing Joists In Roof

The original structure is 24x24 with 6 rafters spaced about 20 apart on a 6 12 roof.

Replacing joists in roof. A 2x6 roof joist old size sawn framing can support about 40 lbs. Per square foot for dead load framing and roofing and about 25 lbs. If only part of the joist is damaged measure the space. The new end is then fitted with the bars going in to slot.

Step 4 place the new roof joist into position. Step 2 measure roof joist. Use your tape measure to record the distance of both rafter legs. 2x6 pine lumber 2x4 pine lumber spax screws or bolts a saw of some sort for cutting down the lumber.

Typically floor joists are repaired or replaced working from below in a basement or crawl space. Per square foot at 24 o c. A new piece of timber is cut a to replace the damaged piece and the joists plates are positioned ether side of the joists with the end of the joist plate right up against the edge of the timber so it is the joist plate that site on the bearer a. Step 1 locate broken roof joist.

Half the 23 minus 18 for the roof tie depending on local codes and snow load requirements that would allow for about 15 lbs. Costs will vary widely depending on the extent and nature of the original problem. Resin is then poured in to the slot to secure the new beam end. He d like to be able to have a vaulted look by adding rafter ties removing the ceiling joists and drywalling the rafters leaving the ties exposed as faux beams.

Before you replace damaged floor joists you must exterminate the insects or improve the drainage and ventilation so the problem won t reoccur. Measure the dimensions of the old rafters beneath your roofing surface. Step 3 cut new roof joist. A vertical slot is machined in the joist.

Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions. Measure the length of wood required for the space. How to repair a roof joist. Repairing roof joists yourself step 1.

A new joist end is drilled to so two or more steel bars can be glued resined in. Per square foot for live load. Step 5 add. If you are replacing the entire joist you may screw the wood into the.

The current ceiling joists are 6 and follow the rafter spacing. The wood should come away quite easily without much force. For a 10 span.