Repairing Rotted Roof Timbers

Wood rotting from the inside out compromises the structural integrity of the rafter.

Repairing rotted roof timbers. This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Structural timber repair and treating joists against wet rot dry rot and insect damage. Then coat the rotted door frame area with wood hardener. Corbel conservation s robin russell provides an introduction to structural timber repairs in historic buildings.

This guide covers everything you need to know about repairing structural timbers including roofing joists and flooring joists when they have been damaged by wet rot dry rot and insect attack such as that from woodworm beetle. Fortunately repairing rotten or weathered eaves is a relatively simple project. Replacing a dry rotted beam is not a difficult task if you follow the tried and true methods listed below. Commonly what you can see of the rotted wood is only part of the problem it is what you cannot see under the surface of the wood that can be the main issue.

Rotted wood rafters in a roof are a serious issue. 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. Your first step will be prying away the bottom and sides of the old eaves. They can span as much as 20 feet and many times they can be doubled as decorative pieces.

Timber resin repairs for roof trusses. Over time it is not uncommon for roof joists to become weathered and rotten and require replacing. In the uk the average cost of repairing roof joists of a 3 bedroom home starts around 250 500 per beam. Roof decking which is nailed to the roof s trusses holds roofing materials including felt paper and shingles and also serves to stiffen your home s structure and protect it from wind.

It takes paint well and won t rot. Use a polyester filler to rebuild rotted or damaged wood. The article concludes with a section outlining approaches to the problem of roof spread. Wood beams are used to support a bearing load from a roof or second floor.

There is always the possibility in older properties that your rafters joists or trusses may have dropped at one end because over time the timber has become rotten and compressed due to long term exposure to damp. You can mold and shape it to match the original wood profile. Your new boards will have to match the old ones in terms of width and thickness so when you go to your local home improvement center you may want to bring them a sample of your old eaves so they match. Remove weak spongy wood preserve and protect wood wi.