The main rafter at the university of Glasgow was affected by dry rot and had to be repaired and treated.

Dry rot in timber investigated

Call – nigel for help

07831 142223

About Us

WE SPECIALISE IN WOOD-ROT AND DAMP PROBLEMS

We have been carrying out timber conservation work for many years in properties ranging from Homes, Churches, University buildings and Museums in Scotland.

Due to our broad range of building repair work services, we can offer unique solutions to difficult problems.

Combined with our 30 years’ experience in dealing with dry rot (Serpula Lacrymans) infections in building timbers.  In the 1990’s started the major change in the timber preservation industry, with the usage of Boron as a timber treatment in buildings.  This allowed us for the first time to be able to treat active dry rot in damp timber, and this major change reduced the amount of timber removal and saved, countless historic cornices.  The mythical 1m cut back in timber is due to inferior quality preservatives being used, and lack of education.

The key to treating dry rot is removing the source of water responsible, combined with an investigation of the timbers to find the extent of the fungal infection, then repair.

Dry rot was found in the timber beam and the floor joists
The timber beam and joists were repaired due to a dry rot infection in the timbers due to penetrating damp.
The photo show how dry rot affected joists and the Bressummer beam were repaired. The cornice work and brandering of a lath and plaster ceiling in the flat below was saved.

common problems

01.

Dry rot

Dry rot in timber is a misleading name as a water supply is required for dry rot fungus to live in timber, it can only survive or spread in an area of dampness and a wood source. It normally prefers large dimension timbers as they give a more stable environment for the fungal infection to grow. It can become dormant due to the lack of water from 1 to 9 years. this period is temperature dependent.

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02.

Wet rot

Wet rot is a generic term used to define a variety of fungal species, such as the cellar fungus Coniophora puteana and the mine fungus Fibroporia vaillantii. As with dry rot the key is removing the water supply. unlike dry rot it does not have a minigful ability to spread through lime masonry is limited. After which structural repairs will need to be carried out.

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03.

timbersafe lintel

A timbersafe is formed out of a large section of timber (5″ x 9″) which is normally a ruff-sawn softwood and is commonly installed in traditional buildings, at the internal side of a window, door opening or press cupboard, and is mostly surrounded by masonry. This type of softwood lintel is often found at the centre of a dry rot infection as it can create a stable damp environment for the fungus to survive in.

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04.

Epoxy resin timber repairs

Using structural epoxy resin, we can connect new timber to structural timbers, i.e., bressummer beams, using steel rods inserted into the timber to create a structural connection, therefore saving damage to the building and reducing the cost to the client.

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05.

bressummer beam

A Bressummer Beam is a large structural support timber in traditional buildings.  Often found over bay windows or other big openings in traditional buildings.  It can have numerous floor joists and/or rafters connected to it.  Due to the large size of the timber, Its bearing end can often be a focal point of a dry rot outbreak.

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06.

PENINTRATING DAMP

Penetrating damp is moisture that penetrates through the external building envelope, often because of; leaking roofs or water-carrying pipework, blocked or damaged guttering, defects in the wall structure etc.  It is a common cause of dry rot in the structural timbers in contact with the damp areas.

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This shows dry rot affected floor joist ends being repaired repairs.

for a Quality Service

Email us with photos of your dry rot problem with the

properties address.

Access arrangement.

This will allow us to understand the type of construction and its environment.

sales@adpc.co.uk

Call 07831 142223

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