Strengthening Roof Joists

Strengthening existing roof rafters is a difficult process that often requires professional help.

Strengthening roof joists.

You can however strengthen the joists. To prevent sag in 2x6 s and strengthen at same time you could secure lengths of stainless steel or galvanized cable attach at each end of individual ceiling joists have cable go over a one or two spreaders or strut projecting down from the underside of the ceiling joist maybe 12 14 or so as not to lose too much headroom these could. Choose ring shank nails or screws that are long enough to penetrate the joists by 11 2 in and space them every 6 in. If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists.

As incremental parts of a building s structure joists are not easily replaced. Joists and orient panel ends over joists. Sistering is the process of adding a new joist next to each existing joist. How to strengthen beams using plywood.

Snow increases the overall weight of your roof adding to the forces acting on your rafters. This is also routine procedure for some ceiling or floor joists that are manufactured in. Laminated and single piece beams are often reinforced with plywood. If you have a stick frame roof there are a few basic techniques that you can use to strengthen your rafters.

When installing on the underside of the joists the process is the same.