Wood You Like Ltd
natural wooden flooring (Kent UK)
natural wooden flooring (Kent UK)
Our British wood flooring Association colleague Matt Bourne brings you the following advice when faced with bitumen on your underfloor or subfloor:
Question: "Is there any way we can screed over bitumen when we want to glue a wooden floor down?"
Matty's advice:
The bitumen should always be removed and not screeded over. The subfloor SHOULD be shot blasted to remove all bitumen and glue residue.
However, I prime with a neoprime primer and use acrylic leveling compound over the top ONLY if the Bitumen is well stuck down and very thin. This will give you a good flat base. You can then use a epoxy dpm paint to deal with any moister problems.
Now please remember that this is NOT a recommended method by the product manufacturers. You are relying on how well the bitumen paint is stuck to the subfloor!
Do not use a latex flooring smoothing compound! These compounds are good for nothing and normally used by people who have no idea. ( 95% of builders ) They will stick to anything you put them over but have very little strength, so basically you can NOT use a epoxy compound or any sort of glue over the top!
Matt Bourne (June 2008) BwfA, NVQ Assessor Flooring Assesments
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