Repairing Roof Timbers

How to repair roof trusses.

Repairing roof timbers.

The options for replacing roof joists are the repair of the beam with timber resin materials repairing using specialist repair plates or where extensive damage is present the removal and replacement of the entire joist and truss. Beetle infestation timber decay poorly executed alterations and undersized rafters are common problems. Older roof timbers were connected with mortise and tenon joints plus wooden pegs. It became apparent that about half of the pine boards forming the roof deck were damaged beyond repair.

Resin repair with tie bars and injected resin can solve this problem. In most cases complete replacement of a timber will be impossible by traditional means without scaffolding or roof removal but a trs will allow the low disturbance and therefore cheaper repair of beams roof purlins tie beams lintels joists and rafters. Repairing damaged roof timbers. Also the rafters that spanned the full width of the mono pitch shed were rotten at the lower end.

These tend to be eaten away by woodworm and the roof beams then move opening up the joints. Corbel conservation s robin russell provides an introduction to structural timber repairs in historic buildings. The emphasis of the article is on repair and reinforcement options including the use of scarf repairs stainless steel flitch plates and the use of resins. This method can even be used for repairing flag poles.

Where serious problems are suspected call in a surveyor or structural engineer. This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Remove weak spongy wood preserve and protect wood wi. These are compounded when a roof covering is replaced with a heavier material such as concrete tiles.