I consulted and helped a gentleman install a BR-111 solid 5/16" floor over concrete. On one area, after doing some leveling (flatening), I installed a vinyl vapor barrier. Over that, he installed the BR-111 5/16" Santos Mahagony with Bostick's Best adhesive. It turned out very well with no problems. Since I was unavailable to install the vinyl vapor barrier in the other room in this guy's time frame, he used the MVP prior to installing the flooring. Both rooms are performing just fine. The key to a successful concrete install is to FLATEN the slab and use a moisture barrier as recommended by BR-111. Also, testing for vapor emmissions prior to installing or purchasing the flooring will let you know if the concrete will pose any problems.
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