What we do Damp Proofing
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Damp Proofing

The awareness of dampness in buildings dates back to the 19th century when a lot of amendments and reforms to building regulations were taking place, a boom in population tied with the industrial revolution, lead to widespread house building and this granted new opportunities to build better and more hygienic houses, as discussed in more detail in our section regarding sub-floor ventilation.

Previous to this, and even at the time of developing these new building regulations, dampness in a house was common and something that people conceded to put up with as a part of daily life, it was managed in a different way compared to sealing up our homes like we do today.

As you will see across the south of England and beyond traditional buildings were built to breathe and made up of much more vapor permeable materials such as limestone, flint, cob, stone, brick & timber...

Unfortunately we have come across and continue to see the wrong remedial treatments specified by damp proofing contractors that don't correctly identify the source of the issue(s) or not simply understanding the materials with which buildings are built and the products they are using.

  • Beware of the 'free surveys' as it will often result in unnecessary work being undertaken on your property, without addressing the root cause of the problem and adding the possibility of damage to any original features
  • K.T. Preservation request a fee to survey the property and produce a comprehensive report on all potential causes of the damp issue.
  • K.T. Preservation’s surveyors are fully qualified to the highest standard and have many years of experience in all types of construction.
  • Subsequently if work is required to remedy the problem the surveyor will specify work that is sympathetic to the type of property and will cure the problem.
  • ALL of our damp proofing works are fully guaranteed and fully insured.
  • Despite all this, sadly we know what the damage looks like...

The obvious deterioration created by rising damp in particular, salt contamination and penetrating damp; causes damage to interior plaster-work and decorations, rots skirting boards and other finishes or internal wooden members (particular attention drawn to wood-destroying fungi in our timber treatment section) and it shows itself physically, with symptoms such as peeling wallpaper, blistering / flaking of paint, soft and rotten skirting boards or door frames among others. Besides this, a cold damp house is an unhealthy environment to live in and is much more expensive to heat, cold damp walls grant much more probability for condensation and the growth of black mould too!

Moisture is responsible for up to 80% of all building problems.

Upon undertaking our first remedial damp proofing contracts in the early 1980's we have grown alongside the development of many new products and systems in the industry and have the best site specific solution for you, however our commitment to solving the source of the issue and preserving the historical fabric of buildings has remained the same using traditional methods where appropriate.

Below displays each component in a cross section of our full: Cavity Drainage Membrane System. Above ground applications would not include a drainage channel.

Cavity drain membranes have also become the number one choice for builders and developers tackling damp issues above ground. When dealing with salt and damp related issues, allowing the wall to breathe behind a cavity drain membrane has become the approach that most contractors take to such problems today; isolating surface finishes from any dampness issues, creating a passive presence on the structure preventing decay.

In this instance we have completed numerous contracts in the conversion of old barns, outbuildings and modern new builds to inhabited dwellings for many trusted and expert developers across the south of England. The requirement for a cavity drainage membrane system is usually the primary option and a fail-safe provided its installed correctly.

(Below highlights the need for a CM8 Membrane & Drainage Channel to combat any water ingress through the retaining wall and divert any water run off from the fields surrounding the barn)

(We had previously finished our work on the other barn developments [pictured above] on the site, which later won a design award for innovation in living spaces)

There is not one single and universally applied solution to combat damp...

Domestic related damp issues or unidentified problems that the common homeowner would face generally require different remedies or the case could result with no action being taken, simply changing living habits or conducting maintenance on the property. Other times, circumstances are out of ones control and a neighbouring property could raise the ground levels unknowingly to you without the prospect of altering it back to its' original height. 

K.T. Preservation express both understanding and sympathy to the building and the client, so whatever your issues with damp we offer the correct course of action to take whether it be external repairs and maintenance or traditional remedial work and repair to the installation of a waterproof cavity drain membrane system.

To gather a more detailed insight into our work and past contracts then have a look at our case studies. If you have any questions, or are interested in having a survey in relation to anything that has been mentioned above do not hesitate to contact us.

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