Be careful as to the width of the solid wood you are installing on tiles, basically you are installing a floating floor, and if the boards are wider than 110mm they will be more liable to cupping than a narrower board...BE CAREFUL, keep away from the sticky backed underlay, its rubbish and difficult to use, i don't know any pro firms who use that type of product, it will drive you potty and you will end up slinging it out, and it isn't cheap either.
If you are going to the expense of buying a quality solid wood then get it professionally laid, don't cheap out and think it looks as easy to do as the b & q advert on the telly, it isn't.....
Why would the glue crack?Won't the glue crack when the floor is walked on? Why the 'c' on the end of pva?.
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