Damp proof/concreting

Postby dandoozle » Mon Mar 15, 2010 1:50 pm

Hi folks,

Need some advice as to the best course of action...

I have damp coming up through a stone flag floor in my terraced house. Now, i was looking at removing these, digging down then sand/membrane/concrete etc.

As i'm very much an amateur DIY-ist, i was wondering if anyone could point me the right direction as regards my choices for action, and materials/depths to dig etc.

Any help would be greatly appreciated.


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Simply Build It

Postby Perry525 » Fri Mar 19, 2010 7:01 pm

The chances are that your flagstones are merely laid directly on the ground.

Presuming you want to retain them?
They should be removed and the ground dug out.

While you are doing this you need to consider what else you can achieve.

Obviously you need a concrete base about three to four inches thick.

Then you will want a warm floor for your lady.
A layer of six inch thick polystyrene will do this.

And then a damp proof membrane.

And a layer of three to four inches of concrete as a base for the slabs. This needs to be surrounded by at least one inch of polystyrene, to stop the heat from the slab escaping into the walls

And you could lay plastic pipe in the top layer of concrete to provide under floor heating.
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Postby TheDoctor4 » Mon Jun 28, 2010 6:51 pm

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