Post by dartmoorlizzie »
Mon Jan 19, 2009 12:27 pm
Our porch has only single walls- no cavity - and consequently any paint quickly becomes discoloured and speckled with black mould. Are there any sealants I could try to stop this happening? Grateful for all ideas.
stoneyboy
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Post by stoneyboy »
Mon Jan 19, 2009 10:55 pm
dartmoorlizzie,
Nothing will stay stuck to the inside of the walls if water is penetrating from the outside, also condensation will form because the walls are single skin - hence the mould.
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dartmoorlizzie
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Post by dartmoorlizzie »
Tue Jan 20, 2009 6:16 pm
So demolish porch and rebuild with cavity? Hang the expense?
stoneyboy
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Post by stoneyboy »
Wed Jan 21, 2009 6:11 pm
dartmoorlizzie,
Since its a porch you could build inner walls of aerated concrete blocks leaving a cavity between the inner and outer walls but your porch will then be about 30cm smaller.
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Post by TheDoctor5 »
Mon Jan 26, 2009 9:15 am
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