damp-proof

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You ideally need to re-lay the floor with a damp-proof course, but the easiest solution is to simply lay porcelain tiles directly on the concrete as these are waterproof.

Product areas include: rising damp, replastering, damp-proof coatings, condensation and mould, rain penetration, masonry repair, basement drainage, and tanking and waterproofing in general.

The study revealed that all the sampled professionals considered the failure to use damp-proof membrane as the main cause of rising damp with a total weight of 163 and a Relative Important Index (RII) of 0.836.

A I would check that you haven't bridged your damp-proof course.

Since 1875 a damp-proof course (DPC) has been required in the construction of walls.

If there is no obvious pipework behind the wall, which I doubt, then I would check the outside ground level, as it's common when installing driveways or landscaping for the ground level to rise and bridge the "damp-proof course", which causes low-level dampness.

If your home doesn't have a damp-proof course, or it's defective, you'll need a damp specialist to install one.

Normal construction using such elements as damp-proof courses, damp-proof membranes, lead flashings, cavity walls and suspended floors reduce moisture penetration into buildings.

If your home's damp-proof course is being prevented from doing its job properly, this can also cause damp.

An Post spokesman Angus Lavery said: "We plan to remove the post box and see if it can be made damp-proof and slug-proof in the hope that the lovely old Victorian box can be retained."