This is a solid 3/4" product designed to be nailed to a wood substrate.
But can be installed over concrete using our Elastilon underlayment.
What you should know about Elastilon Strong
An Elastilon-backed wood floor is much faster to install than traditional nail or glue-down methods.
Elastilon Strong can be installed on new concrete floors, handling up to 3.9% moisture content. A vapour barrier of at least 6 mil PE should be used below grade and on newly poured concrete above grade where the moisture content is above 3.9%.
Laid down with a 5/8” (15 mm) expansion gap, Elastilon Strong creates a dynamic, floating floor that expands or contracts naturally with the hardwood.
Elastilon Strong has no odor and is free of volatile materials.
Elastilon Strong gives cushioned comfort.
1/8” (3 mm) thick Elastilon Strong has ratings of IIC 62 and STC 54.
Thermal resistance: R _ 0,15 (m K) / W
Elastilon Strong carries a 70-year limited warranty.
Floating Plywood Nailing Base: Install a floating plywood nailing base over concrete to receive wood flooring:
1. Lay 6 mil polyethylene sheet vapor barrier over concrete substrate. Overlap seam 6 inches and seal with duct tape.
2. Lay one layer of 1/2 inch thick CDX exterior grade plywood over vapor barrier leaving 1/8 inch gap between panels.
3. Lay second layer of 1/2 inch thick CDX exterior grade plywood on a diagonal over first plywood layer again leaving 1/8 inch gap between panels.
4. Provide a minimum of 1/2-inch expansion space at the perimeter for normal-sized areas.
5. Screw plywood layers together in a 6 inch (152 mm) pattern. Exercise care not to puncture sheet vapor barrier.
6. Prior to installation of wood flooring, install one ply of asphalt felt underlayment.
Thank you for your inquiry.
Answered on 8/2/2012 by cc-2