Porous render over polystyrene causing leak into downstairs living area.

John McC · 3 Feb 2023

Hi. I have 36 square metres of wall which is made of polystyrene units with joints and a render finish. It is porous and leaks run down joints into living area below. Do I try to seal it (with pint?) or get it fully replaced?

any thought welcome.

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Porous render over polystyrene causing leak into downstairs living area.

John McC

DIYnot Local

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