Repairing Roof Timbers

Corbel conservation s robin russell provides an introduction to structural timber repairs in historic buildings.

Repairing roof timbers.

Roof arch repaired using timber resin splice these units are made to order supplied as a kit. Where serious problems are suspected call in a surveyor or structural engineer. Resin repair with tie bars and injected resin can solve this problem. It became apparent that about half of the pine boards forming the roof deck were damaged beyond repair.

Roof repair prop wet rotted roof timber. Older roof timbers were connected with mortise and tenon joints plus wooden pegs. As the roof covering was removed the state of the rafters was revealed. This method can even be used for repairing flag poles.

Also the rafters that spanned the full width of the mono pitch shed were rotten at the lower end. 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. These tend to be eaten away by woodworm and the roof beams then move opening up the joints. 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.

These are compounded when a roof covering is replaced with a heavier material such as concrete tiles. Beetle infestation timber decay poorly executed alterations and undersized rafters are common problems. Repairing damaged roof timbers. Fragments of rotten timber and roof felt.

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. How to repair roof trusses. Made to fit your beam.