Jerri Nicholson Flooring November 27th, 2018 - 06:26:34
The base of our sub floor consists of a dry above grade concrete slab with a six-milliliter plastic vapor barrier laid over it. Next, we overlap two layers of 3/4 inch, plywood and fasten them together with screws to create a sturdy floating sub floor. The vapor barrier will prevent any remaining moisture in the concrete from permeating into the plywood and flooring above in order to ensure proper adhesion, you'll need to vacuum the sub floor and make sure there are no protruding nail head screws, paint or greasy spots that might compromise the Adhesive bond, it's a simple chore, but a critical one and should be done several times during installation to keep the surfaces clean and is dust free as possible.
Now national wood flooring Association requires 3/4 of an inch space on each side. Of course, we created these spacers to give us a race against the wall in the board, so the most important part when starting the floor is getting a straight line. So what we did is we went ahead and put some of these spaces on the board. That goes the 3/4 of an inch on all sides of this first row, and then we went ahead and pop the chalk line to get ourselves a very straight line in addition to blind nailing. These wide boards will also need to be glued to firmly secure them to the sub floor.
Greg is using a pneumatic nail gun to fire Brad nails into the top of the planks along the wall. This will hold the planks tight while the glue sets in place now we're onto blind nailing, which will continue on all rows, moving forward, we're using 2-inch cleats, which have terrific holding power and are firing them in using a pneumatic hammer. They should be shot in every four to six inches through the tongue. As seen here, if the floor is going over a concrete slab and you're relying on a plastic vapor barrier, you want to make sure to use the properly sized cleats to prevent puncturing of the plastic.
There are many types of glue that can be used, but for this application, applying beads of flexible polyurethane-based adhesive is a strong and cost-effective way of locking this wide birch down. The glue is flexible enough to move with the wood as it expands and contracts with the seasons without breaking the adhesive bond. Each row of planks will fit snug to the nailed row before it eventually. You'll need to move the flooring pile to the other side of the room.
This is a good time to keep planks organized by width and sometimes sorted by color or grain depending on the species. We've reached the midpoint of this project and we're trying to showcase some of the boards that are well figured and, as you can see, this has got a really great figure pattern, so we're putting it in the middle of floor to kind of enhance the room once You get going the install moves quickly.