DAMP PROOFING CROYDON,
WE ARE SPECIALISTS IN DAMP PROOFING,
DRY ROT, WATERPROOFING,DPC INJECTION, DAMP IN WALLS,
DAMP IN HOUSES.
FOR AN IMMEDIATE SURVEY AND DAMP REPORT
0208 464 3482 OR 0203 375 2206
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We aim to reply on the same day.
What is rising damp?
Rising damp occurs as a result of capillary suction of moisture from the
ground into porous masonry building materials such as stone, brick,
earth and mortar. The moisture evaporates from either face of the wall
(inside or outside), allowing more to be drawn from below. The height to
which the moisture will rise is determined by the evaporation rate and
the nature of the wall. The normal limit for rising damp ranges from 0.5
to 1.5 metres above ground level.
Rising damp may show as a high-tide-like stain on wallpaper and other
interior finishes, and, when more severe, as blistering of paint and loss of
plaster. Damp walls encourage the growth of moulds, which, with the
high humidity, can lead to health problems for occupants. Externally, a
damp zone may be evident at the base of walls, with associated fretting
and crumbling of the masonry.
To prevent rising damp it is normal practice to build-in an impermeable
barrier at the base of the wall just above ground level. This is known as
the damp-proof course (DPC) or sometimes as the damp course.
Modern DPCs are generally 0.5mm thick black polyethylene sheeting.
Early DPCs included overlapping roofing slates, lead sheets, glazed
ceramic tiles (made for the purpose) and various bitumen-based
materials, including tar–sand mixes which were laid hot.
Unfortunately, many 19th-century buildings in England were built without
DPCs, and some early DPCs have proved ineffective. As a result, a
substantial proportion of our historic buildings have inadequate dampproofing.
What is woodworm?
Woodworm refers to the larvae of any wood-boring beetle, rather than one particular species. In the UK, the most common are the Common Furniture Beetle (Anobium punctatum), Deathwatch Beetle (Xestobium rufuvillosum), House Longhorn Beetle (Hylotrupes bajulus) and Powderpost Beetle (Lyctus brunneus). All invade and consume wood, and then leave when they have reached maturity.
How do I know if my property is affected?
Your woodwork may be harbouring woodworm without you knowing it. Wood can be infected with eggs or larvae without it being noticeable, and you may not discover a woodworm infestation for several years. It's a common misconception that woodworm only affects old properties, in fact it can cause damage to newly constructed buildings.
Tell tale signs of woodworm include:
Small round holes in your woodwork, similar to the holes in a dart board.
Fine, powdery dust around these holes (this is known as frass).
Crumbly edges to boards and joists.
Adult beetles emerging from the holes or present around the house.
Even if you can't see any holes, you might also find frass escaping from the back or underside of old furniture. Again this suggests active woodworm.
However, not all of these signs of activity are cause for concern. Holes and frass might just indicate a previous woodworm infestation, long since dormant
DRY / WET ROT
What is Dry Rot?
Dry Rot and Wet Rot are wood destroying fungi which attack timber in order to extract food. In buildings the result is the deterioration and ultimately destruction of the timber with serious consequences in the case of structural sections. The problem affects all property, historic or modern. Dampness combined with lack of ventilation provides the ideal conditions for fungal.
Sometimes called the cellar fungus, Wet Rot is a common cause of structural defects. It requires a moisture content of 50 to 60% but it does not spread through masonry and growth ceases when the moisture is removed. But the timber will obviously need replacing and up to 1 meter in distance from the infected area should be removed.
The true Dry Rot fungus is the more serious requiring fast specialist action to avoid extensive damage. It is malignant and will spread even through thick walls in search of timber to attack. Left untreated dry rot can destroy a full building.
Special low odour micro-emulsion preservative fluids are applied by spray, brush, or in paste and gel form.
Our skilled joiners can replace defective timbers including flooring, structural and ornate sections.
Founded in 1980, Protective Preservations has many years experience in the Damp Proofing sector, with the focus on providing fully guaranteed services to clients throughout London. The company is based in Croydon with a new branch due to open in Bromley. All operatives have a minimum of 8 years experience so clients can rest assured of a high standard of work. The company also offers Woodworm and dry rot services including water damage and leakage.
Suspect a problem?
Are you a home owner who suspects a problem and needs the assistance of a professional company to diagnose your problem and provide a repair? Or are you a potential purchaser looking to buy a property and anxious to know about the condition of your future home before you buy? Whether you're a business, home owner, land lord or potential purchaser we can help. We can provide you with a professional, detailed report of your property undertaken by experienced and fully qualified remedial surveyors. Our reports come with a comprehensive assessment of your problems along with our recommendations and costs for any repairs, if necessary. We also include edited pictures and detailed specifications in our reports to clarify the nature of the problem and assist your understanding. Our specialist work is only undertaken by experienced and qualified remedial technicians and is covered by insurance guarantees, much more than just a promise.
RISING DAMP, DAMP PROOFING, WOODWORM, TIMBER TREATMENT, RE-PLASTERING, SPECIALIST PLASTERING, DRY ROT, WET ROT, WATERPROOFING, TANKING. DPC INJECTION, SOUTHEAST, LONDON,
DPC, quotations, waterproof systems, free estimates, plumbing, building and maintenance, croydon, bromley, mouldy walls, written guarantee, condensation control, insurance work, renovations.
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