Thread: Tiling on top of internal wall insulation (polystyrene)
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The Natural Philosopher The Natural Philosopher is offline
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Default Tiling on top of internal wall insulation (polystyrene)
Tony Bryer wrote:
On Fri, 14 Dec 2007 01:55:46 -0800 (PST) Clive wrote :
If I use polystyrene sheets against the wall underneath ceramic
tiles

Use polyurethane board: 25mm pu = 40mm eps

Even so I'd put a layer of plasterboard over the top.

Foam alone is not QUITE stiff enough to be safe for tiling..

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