Plastic Barrier laid down

4.  Next they cleaned the foundation prior to laying down a heavy gauge plastic sheet over the entire exposed foundation where they would next nail down the 5/8th’s thick plywood.  This heavy duty plastic was applied as the first defense to possible foundation moisture seepage.  Remember, moisture can seep through your foundation and can lead to issues with a wood floors installation.  Moisture protection is a MUST when “building” the deck your hard wood scraped floors will rest on.

5/8th’s thick plywood ( sub-floor)

5.  Once covered in plastic, my crew cut on site sheets of 5/8th’s inch thick pine wood plywood. This was then fitted to match the exact outline of my foundation to be covered in scraped hardwood floors.  The plywood sheets were actually nailed down to the cement slab with a high powered pneumatic nail gun.

Felt/ Last Moisture Barrier

6.  Then, one more moisture protecting layer was installed they called the felt.  It was more or less the same material that is installed under your shingles.  A thin black layer of “felt like” material was cut and nailed down to match the shape of the plywood.  Now they were ready to install the individual hard wood oak planks I selected.  Before we go any further let’s talk about wood selection for a moment!