DIY Doctor

Rising Damp Through Quarry Tiles/ and Concrete and Walls Plus Levelling Required

Postby EMSparrow » Tue Apr 19, 2016 10:07 am


We have an old terraced house (approx 130 years we think) and the ground floor unsurprisingly has rising damp. There is no DCP under the flooring in either room, the sitting room has old quarry tiles on ash/clay and the kitchen has concrete (not sure how think but could be a thin layer over quarry tiles or around 50mm thickness max) which is stable but cracked in places. Both become damp when covered up by flooring/post/furniture etc. We have been advised against digging out the floor and installing a proper DCP/Insulation/concrete flooring-the specialist who advised this was unsure if the walls would be stable enough to dig out the ground so close to them. We've had mixed opinions about how best to treat the flooring, but on top of containing the damp, we also need to level of the floor which is currently at 3 different levels between the two rooms.

I have read in other questions/answers about VANDEX and Asphalt and the 'specialist' suggested a decent apoxy should be used directly over the tiles and concrete before a self levelling screed is used over the top, but I would appreciate opinions the best solution for damp proofing AND levelling (we have a total difference of around 30mm and don't want to loose too much head height as ceilings are already low).

I should point out that we were made to have a DCP to the front and rear walls as part of our mortgage agreement, which is now fitted.

Any thoughts very much appreciated.
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DIY asbestos test kits

Postby welsh brickie » Tue Apr 19, 2016 7:55 pm

if it was my house I would have asphalt laid through the whole floor, it will be level and completely dry, and its only 30mm thick, keeping the head height.
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