Physical Damp Proofing
While we offer both the Chemical and Physical systems, at Dampcoursing we have always firmly believed that the physical DPC far out-performs the chemical equivalent. In recent years other ‘breakthroughs’ have been introduced, and we again would submit that – when it comes to performance and durability – they cannot beat the physical option when it can be applied.
The Building Research Establishment, in its Digest 245, confirms that a physical dpc is the only completely sure method to cure rising damp, and Dampcoursing is happy to back-up its system with a 50 year guarantee.
This method of damp proofing is suitable for walls where existing damp courses have failed, or for walls that never had a dpc – whether they be of brick or stone construction, or a combination of the two.
A central void filled with rubble may also be part of the construction, so this is another area where physical damp proofing offers many more benefits than a chemical alternative.
Specialist cutting equipment is used to create a horizontal groove along the wall.
Working on 1m sections at a time, operatives then place a damp proof course in the groove, bedded on mortar. Spacers are inserted along the section to support the wall and compress the bedding mortar.
The mortar course is then repointed the entire length of the work to create a finished job that is neat and tidy.
Brick wall thicknesses of up to 1m can be achieved, even if composed of a random course stone construction. We are usually able to overcome any technical issues rising from any composition and successfully install a physical damp.