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Should black Bitumen DPC sealer apply to newly replaced class A DPC engineering bricks?
Landscaper suggests to apply black Bitumen DPC sealer to the newly replaced DPC bricks to add a protective layer of protection. Will it trap moisture inside the bricks and cause damage? I think Engineering bricks are already highly resistant to water.
Expert Trade Answers
"Engineering bricks are very resistant to water however you must not cover your top blue as moisture may work its way through your mortar.
So in my opinion a Bitumen sealer would not be needed on the understanding that the top blue remains exposed"
So in my opinion a Bitumen sealer would not be needed on the understanding that the top blue remains exposed"
Answered on 30th Oct 2025 - Member since Oct 2025 -
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"Engineering brick are very water resistant anyway membrane would be the better solution"
Answered on 30th Oct 2025 - Member since Apr 2025 -
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