We just bought a Silvercrest MH (first time homebuyer). We were talked out of a plywood floor by the dealer because he said that Credek flooring has less seams and holds less water, and buckles less than plywood. Now we want to put hardwood - oak - floors over this Cresdek flooring and the installers are saying we can't do it, even though our MH is bolted to a cement foundation, just like a regular home would be. They won't nail to Cresdek. Does anyone know if we are limited to "floating" wood floors?