Fitting Ply to concrete floor

bluetaylor97 | 02:03 Tue 06th Feb 2007 | DIY

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I have laid 22mm ply onto a concrete floor using an appropriate adhesive, following all the manufacturers recommendations. It has stuck down really well except for a couple places were the corners have lifted. Can I drill through and screw the ply down? If so, what is the best fixing type and size that I should use for this as I am putting a wooden floor on top and I really don't want there to be any movement at a later date.
Thanks.

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heathfield

Shouldn't be a problem as long as the concrete is sound. You could use these. They hammer in, but have a cross head slot so can be extracted by unscrewing if it hasn't gone in quite right. Countersink the hole in the ply to keep the head from protruding. Any DIY store.

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