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Daily Archives: September 30, 2015

30 
Sep

Chemical Damp Proof Courses – What And Why?

One of the services that we are proud to offer as builders in Bolton is the installation of effective and appropriate Chemical Damp Proof Course into your property. Chemical Damp Proof Courses are required as part of building regulations, and have been so since the end of the 19th century. However there are still cases of some properties which have either never had a damp proof course, their damp proof course has failed over time or a sub-standard damp proof course has been installed which has then failed.

So what exactly is a Chemical Damp Proof Course and why does your house need one?

Chemical Damp Proof Courses are installed towards the bottom of any walls in your house which are connected to foundations through which moisture can be absorbed and rise into your house. If left untreated this rising damp can cause numerous damp issues throughout your home; not least mould and mildew, unsightly marks and damage to wall plaster and any decorative finishes. An effective damp proof course forms a vertical water resistant barrier around the base of your home’s walls that stops the water from travelling any higher up the wall than the course, thus eliminating the problems of rising damp.

Installing a Chemical Damp Proof Course involves drilling small holes (between 10-12mm in diameter) approximately 6 inches above ground level, into your exterior walls. A moisture resistant liquid silicone-based chemical is then inserted into these holes which joins up along the mortar line (into which the holes were drilled) to form a solid barrier. A high pressure pump is often used to achieve this.

One of the benefits of installing a Chemical Damp Proof Course is that this method is one of the least intrusive methods of damp proofing, as many other methods involves sections of interior plaster removing which can be a significantly messy job! As with nearly all damp proofing methods there can be some drawbacks of installing a Chemical Damp Proof Course. For example with this method it can take a few months for results to emerge. Also it is worth noting that this method won’t work on breeze block walls, as they are non-porous and thus won’t allow the chemicals to permeate properly. However we are able to recommend other methods that are suitable for breeze block construction.

For more information about our Chemical Damp Proof Course installations, or to book a free no obligation visit to assess your requirements, contact Bolton Builders Wisecraft Ltd today.

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Published Date: 30th September 2015
Category: General, Handy Tips


 

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