Laying Tongue And Groove Ply Over Old Floor

And should we use rosin paper between the plywood and subfloor.

Laying tongue and groove ply over old floor.

The rest of the floors are 3 4 oak as you can see in the pictures. For subflooring you use tongue and groove plywood. Is 1 4 in thick plywood okay or do we need something thicker. Repair any broken planks.

We will be installing engineered wood flooring over an old tongue and groove plank subfloor. The subfloor exists for two reasons to add stability to the floor system and to serve as a base for the finished floor. Install a layer of at least or preferably 5 8 ply over the existing planks. Plywood is the best subfloor choice to lay on top of the pine because it nails in securely and creates a flat even surface for the new floor to adhere to.

Pretty simple step here. Take time to make sure your existing planks are well secured in place. A level and sturdy subfloor will also help to prevent the finished floor from moving or creaking. Things to take into account when laying ply over plank subfloors.

On the four foot edges your seams will fall on joist tops so no need for tongue and groove. So my house has 2x6 car decking tongue and groove whatever you want to call it subfloor that i am going to tile over both in the kitchen and the bathroom. Re secure any loose wood subfloor planks osb or plywood subfloors to the floor joists using 2 1 2 deck screws. Many manufacturers recommend applying a continuous inch diameter glue bead to framing members and using a serpentine pattern for supports that are 3 inches or wider.

When laying it over an existing floor a. Apply two beads of glue to panel joint locations. A 1 8 inch glue bead applied at the tongue and groove joints can further improve floor performance. The floor of any building or structure is its base and one of the most important parts so when preparing to lay a plywood subfloor there are several things to keep in mind.

This is particularly important if your old sub floor has lumps and bumps in it. The plywood goes down so the groove is away from the wall that way after the row is finished or at least when you decide to start the next row a 2x4 can be placed across the joists at the edge of the next row and drive with a sledgehammer the second run into the first. Prior to installing any finished flooring it is important to remember. The subfloor is in good condition but we are thinking of putting plywood over it before installing the flooring.