The repair of structural timbers in historic buildings, and especially churches, along with buildings in general can be demanding and controversial.  In historic / listed buildings any timber repairs found to be necessary – usually as a result of wood-boring insect infestation and / or wood-rotting fungi – require a good understanding of the principles and techniques involved, in order to effect a suitable repair strategy.  Any repairs undertaken should successfully restore the structural integrity of the timber framework, along with satisfying complex aesthetic and historical requirements.  Never easy, or straightforward!

Quite often, large, structural timbers in historic buildings will have been hand worked, or salvaged from earlier work and re-used during the original construction, or in a previous restoration.

Working primarily with Rotafix systems, we are able to undertake structural repairs to in-situ timbers in buildings.

This approach often provides an efficient and sympathetic repair to large section timbers, when compared with traditional replacement of structural timbers.

We are able to provide solutions to simple and complex structural repairs. We work closely with architects,  structural engineers and contractors on    heritage and historic buildings, as well as on new construction projects where innovative approaches are required.

The use of resin for structural timber repairs is sometimes controversial.  However, prejudices often stem from a lack of knowledge and understanding of this technology, which can provide a very cost effective repair.

In order to proceed with a resin repair certain justifications may be necessary, in order to convince interested parties of the suitability of this type of repair in a particular situation.

Perhaps the most common example of the use of resin is for replacing decayed beam ends and also for repairing decayed joints in vertical timber framing (externally or internally).  Simple beam ends can be partially or entirely replaced by cutting away the infected timber, inserting reinforcing rods into the timber ends and pouring resin into a pre-formed mould box, thus re-forming the original profile.

Cracks and fissures in timber beams which can threaten their stability but more often, are unsightly, may also benefit from the use of resins, as they are rarely deep enough to warrant more drastic measures.  Longitudinal cracks caused by drying over the years may be simply repaired by drilling vertical holes at right angles and through the fissures at appropriate centres; rods can be fixed into these pre-prepared holes with injected resin into the fissures.  Reinstatement of the shear transfer of the upper and lower section of the beam is thereby restored.

Another common problem which can benefit from the use of resins is the loss of a significant cross sectional area of a timber beam due to fungal or insect attack.  In many instances the decay is confined to a relatively short section of the beam and does not warrant wholesale replacement which could be both complex and expensive.

As mentioned, although there can be prejudice against resin repairs, there is no doubt at all that this method can – and does – create a very strong and economical repair, when compared with traditional timber repairs and / or timber replacement.

Structural resin repairs case studies

Timber Resin Repair Case Study

Timber Resin Repair

Preservation Treatments were requested to provide a timber report and quotation prior to the purchase of this property in Sherfield on Loddon, Hampshire. The property is a brick and timber frame built, Grade II Listed building. The purchasers were concerned about some decaying timbers to the exterior of the building.

Contact us today to arrange for a survey. One of our qualified Surveyors will assess the timber that needs repairing, and will provide a report outlining the suitable treatment along with a quotation for the work.

0208 914 8189


01962 706188


01276 66466