PROTECTING YOUR HOME
Your home represents probably your single most valuable investment but problems with damp or timber decay, if left untreated, could prove extremely damaging.

WOODWORM
It is estimated that about three in every four houses in the country are affected by woodworm. Infestations can cause serious damage to structural timber, particularly in roofs, flooring and staircases.

WOODROT
Fungal decay in timber is caused by moisture penetration. Wet Rot is a common cause of structural defects but it is the Dry Rot fungus which is the most dangerous, causing timber to become dry and brittle. It is malignant and will spread rapidly

RISING DAMP
Older properties built without a damp proof course or others where the damp course has perished or failed are most at risk from rising damp. Apart from the unhealthy living conditions, heat loss is increased and plaster can start to break down.

SURVEY
The first step is for an experienced John Morrison surveyor to inspect your property and investigate thoroughly any problems of dampness or timber decay.

RAPID LOCAL SERVICE

Call in John Timber Preservation Ltd and you will benefit from a fast and efficient local service.

REPORT
A detailed report will follow with recommendations for treatment and its cost. In some circumstances exposure work and further examination may be needed before a full report can be provided.

PROPERTY CARE
Commission John Morrison to carry out remedial treatment work and you can be confident that our experienced technicians will go about their work with great care, causing minimum disturbance to your home.

EFFECTIVE REMEDIES
The successful treatment of these problems calls for 100% professionalism. John Morrison Timber Preservation Ltd are highly experienced in this type of specialist work using only proven techniques and materials.

RELIABLE GUARANTEES
Most of our rising damp and timber preservation treatments carry a 20 year Guarantee.

GUARANTEE INSURANCE
As an option we can offer as members of the Guarantee Protection Trust the benefits of Insurance backing for the payment of a small once-only premium.

BELOW YOU CAN SEE DETAILED DESCRIPTIONS OF COMMON PROBLEMS AND WHAT EFFECT THEY CAN HAVE ON YOUR PROPERTY

COMMON FURNITURE BEETLE
(Anobium punctatum)
‘woodworm’ is the commonest cause of insect attack of softwoods in buildings, being often found in structural timbers, roofs, floors and joists. The female adult beetle lays eggs on the susceptible timbers. These hatch into larvae, which burrow into the timber, progressively weakening it. The stage lasts at least three years, and when fully grown, larvae are 2.5mm (1/10”) long. Adult beetles emerge from the timber, at the completion of the pupal stage, through a 1-2mm diameter flight (exit) hole.

WOOD BORING WEEVILS
(Pentarthrum huttoni) and (Euophyrum confine) are the two most important which are commonly found attacking partly decayed wood. Both adults and larvae cause the breakdown of the wood by burrowing, principally along the grain, leaving paper thin walls of wood separating the borings. Flight holes are ragged in outline, and less than 2mm in diamter. These exit holes are of smaller diameter than those of the Anobium.

DRY ROT
(Serpula lacrymans)
This fungus causes decay primarily under conditions of restricted ventilation, and high humidity, the optimum moisture content for decay being 30-40% moisture content. Dry rot can remain active in timber down to 20% moisture content. The fungus can grow throughout the fabric of a building if conditions are suitable. It can penetrate through brickwork and masonary, and behind plaster, decaying any timber in its path. Decayed timber develops 'cuboidal' cracking, and is usually over grown by masses of grey-white mycelium. Plate-like fruiting bodies produce millions of rusty-red spores (seeds) as a reddish dust. These spores spread the fungus infection to other sites.