Morning Gents
Yes PCI did try to convince us that laying the mat down with 3 mm notched trowel using a flexible cement based adhesive would strengthen a floor however they were not too convincing with the argument. However on good secure floorboards suficiently screwed down would be an ideal area to lay the mat. Imagine not having to lump around boards.
Anyone who has had a go i would be interested to hear what they think.