Hi Matt, I've installed it several ways - floated with no fasteners, tacked on the outer edges to sill plates, and Tapconed edges and field. Advantech goes together pretty snug, so it depends on your shop floor and environment if there will be any movement. Unless you are in a very humid environment it will stay flat, Advantech is a very stable product . If you have concerns about it moving, use Tapcons or tack the perimeter and spot Tapcon any trouble areas. You will probably have to tack the back edge on the first row during installation to keep your striaght line unless the wall you start on is straight. I just did my shop floor in October and floated it.
Edit: If you are going to put flooring over the Advantech, you will want to secure your subfloor down.
Last edited by James Conrad; 01-06-2014 at 7:08 PM.
"The real voyage of discovery consists not in seeking new landscapes, but in having new eyes." - Proust