Browse Forums Paving & Concreting Re: Concrete slab with solid timber floors, tiles and carpet 2Jun 03, 2012 8:36 pm @builderforlife Building inspector and passionate about construction When you need an expert to take a look. Re: Concrete slab with solid timber floors, tiles and carpet 13Jun 25, 2012 8:39 pm That doesnt control the RH level in new slabs , Common mistake in the concrete industry is using curing compounds on concrete that is to have a floor covering here is why : Concrete cures at a inch a month for the first 3 month then it dramatically slows down . When you place a curing compound on concrete it helps cure the surface and perhaps a little on the paste but internally it cant Hydrate , Concrete needs to hydrate ( cure naturally ) . so once you grind to get the surface ready for adhesives for many different flooring systems you then take off the barrier that has been stopping the floor from Hydrating . Put a moisture meter on it and it will be off the scale , you will have to waiting another 1" a month or risk blowing off the compunds , This is the main reason why timber floors POP and fail on New builds . Dont stress it can be fixed im just advising you to watch out Interesting Fact in the USA we use 6 mm DPC , not 1.5 mm polythene that can punch with a nail or tie wire Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15887 1 15729 Firstly the ableflex that has been installed needs (manufactures specification) a sealant cap over the top, preventing water draining down between the slab and the… 3 7744 |