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Damp Proofing

Damp Proofing 

Are you suffering damp in your home? Maybe noticed some of the obvious signs of damp peeling wallpaper, mould  on your walls, or a musty smell?  Damp Protection Services Limited provide damp solutions for your home, from chemical injections and waterproofing, to an installation of a damp proofing membrane.

There are many signs of rising damp, peeling wallpaper and mould growth are obvious indicators, however you might also notice rot in timber, wet skirting boards or damp looking exterior brick or stonework. If you notice any of these signs of damp contact Damp Protection Services Limited for a damp survey.

Damp Protection Services Limited provide a number of options to help you overcome your damp issues. First, we begin with a site survey to find the source of the damp. Then we provide a full program of works and possible treatments of rising or penetrating damp issues.

Damp in a domestic property is usually caused by one or more of three main issues:

  1. Rising damp
  2. Penetrating damp
  3. Ventilation issues (condensation)

Damp Protection Services Limited are happy to give advice on any of these issues that may be affecting your home.

 

Rising Damp

Rising damp is usually slow to develop and can be seasonally effected, increasing in autumn and winter and falling in summer and can be present for several years until symptoms develop. Rising damp may show as a tide like damp patch or stain on the wall while above shows little or no damage, below the paint may be bubbling or blistering, wall coverings may be stained and peeling plaster damaged skirting boards showing signs of dry rot or timber decay. Externally the signs of rising damp are white salt marks or darkening of the lower brickwork and even spalled (damaged) bricks. Floors show moist patches and damp staining.

Seasonal effects should be taken into account in any diagnosis since the damp issues can disappear in the summer months and return in the winter.

Rising damp is described as dampness resulting from upward movement of water in the ground rising  through the foundations by capillary action. This usually occurs at ground floor level  of external and interior partition structural walls. The height to which rising damp will rise depends on the amount of moisture in the ground and the evaporation rate from the face of the wall surface. As a rule salting is normally present in the plaster on the walls suffering from rising damp. These salts will also absorb moisture from the air making the walls even more damp. This is the main reason the plaster has to be removed from any wall suffering from rising damp , the height of rising damp usually is not much higher than 1 metre above ground level.

However, the presence of a damp proof course does not guarantee that rising damp will not occur.  If the continuous run of the dpc has been bridged or broken then dampness can appear.

Rising Damp Survey

Before choosing the installation of a chemical damp-proof course to cure the effects of rising damp, the Damp Protection Services Limited specialist surveyor will have to carry out a damp survey to assess the damp issues and diagnose the exact cause of the damp problem to establish the need and the suitability for rising damp treatment and protection.

There are many factors to be taken into consideration which are all reported in the Damp Protection Services Limited site survey.  Should the Damp Protection Services Limited surveyor, after carrying out a thorough and comprehensive inspection both  internally and externally, after eliminating all other causes such as penetrating and condensation damp, diagnose rising damp, then we will assess the extent of the dampness and the need for plastering and method.  A damp report/quotation will be provided outlining the most cost effective solution and  remedial treatment to the damp issues at your property. There is no charge for a site survey if you are the home owner.  Although we do supply surveys for customers who have been advised by a mortgage lender building survey s there is a small charge of £125.00 which is deducted should we be instructed to carry out any remedial works.

Treatment

  • The removal of all salt contaminated and damaged plaster, usually to a height of 1 metre.
  • Visibly unaffected plaster may be left above the 1 metre level.
  • An application of an anti-sulphate liquid to make salting insoluble prior to plastering injecting a chemical damp-proof course (DPC) to control rising dampness involves the drilling of the mortar both externally and internally and then injecting the damp-proof course cream.
  • The installation of a chemical damp-proof barrier course in a property provides an impermeable damp proof course at low level to prevent further rising damp issues occurring. This is probably the most effective and common form of damp-proofing treatment used by Damp Protection Services Limited when controlling rising damp in many homes and is considered to be the most cost effective method of rising damp prevention.
  • Damp Protection Services Limited make sure we do the job right we then seal with a damp proofing membrane or a tanking slurry. Damp Protection Services feel this is the most appropriate course of action and gives you the home owner full peace of mind as it gives double the protection. Walls are then re-boarded and re-plastered. Where existing plaster isn't thick enough to make boarding out practical a render coat is applied to the walls prior to re-plastering.

Damp Protection Services Limited operate throughout the North West covering Manchester Bolton, Bury, Preston and Stockport. Our services include rising damp treatments, timber treatments, cellar tanking, condensation control and basement conversion and water proofing.

Call us today

07538 463 869 / 0161 660 0482 

info@dampprotectionservices.co.uk

 

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