How do you secure plywood subfloor?

Quote from the video:
Quote from Youtube video: Because if you pound your underlayment down with nails you're going to be leaving big dips in the floor i'll show you that in a few minutes.

Should I nail or screw plywood to subfloor?

For plywood, wood plank, or OSB subflooring, you can use either nails or screws to secure everything and attach it to the joists underneath. You don’t need to use either screws or nails on concrete subflooring because it is poured as a solid reinforced slab.

Should plywood underlayment be screwed to joists?

It is nailed or screwed to the joists to secure it completely. Adding fasteners to this layer before laying underlayment helps stabilize and quiet an old floor. Drive screws or nails through the subfloor and into the joists. These screws or nails should go in between the existing fasteners for reinforcement.

How do you secure 3/8 plywood underlayment?

Quote from the video:
Quote from Youtube video: Remember to leave an eighth to a quarter inch expansion joint between the panel. And the wall. Stand on each panel during fastening to ensure full contact with the subfloor fasten.

What do you fasten subfloor with?

As far as nails go, ring shank nails are a popular choice for subflooring. A ring shank has extra grip and holding power, compared to other shank types, and creates a tighter subfloor. Although ring shank nails have a good hold, screws have more overall holding power by comparison.

What goes on top of subfloor?

Underlayment: Some types of flooring can be installed directly on top of the subfloor, such as vinyl flooring. Other types need a middle layer, called underlayment, such as laminate,carpet and tile.

Are deck screws good for subfloor?

What is this? If you’d like to try another kind of screw that isn’t specifically designed as compatible with subfloor projects, you could try using deck screws. Whatever you do, don’t use drywall screws for the subfloor.

What size screws 3/4 plywood subfloor?

The proper steel screw sizes for securing 3/4-inch plywood to the floor joists are #8, #10 and #12 screws. The number refers to the thickness of the screw. Each is available in lengths from 1 1/4 to 3 inches. Typically, the 3-inch variety is used to secure plywood subfloors.

Should you staple or screw underlayment to subfloor?

Never use adhesive on the sub-floor to attach the plywood underlayment. Instead, fasten the plywood underlayment panels with staples, ring-shank nails or screws.

Can I use screws for plywood underlayment?

Rather than nails, screws are best to use for subfloors — these fasteners are convenient, easy to remove and capable of providing torque that nails lack. Because of their structure, screws can penetrate plywood more easily and improve the connection, whereas nails can weaken the plywood.

Can you screw down plywood underlayment?

You can also fasten underlayment with galvanized or coated screws or nails. Do not use standard, uncoated fasteners because they are prone to rust, which can discolor some types of flooring.

How do you secure the second layer of a subfloor?

Second Layer Installation

First layer must be dry prior to laying the second layer. Place a layer of 15-lb felt on top of the subflooring prior to installing second layer. Adhesives should not be used to fasten the two layers together. Install second layer on top of the first layer inside of the wall studs.

Is it better to nail or screw plywood?

To start with, most experts recommend screws over nails when working with plywood. Nevertheless, there are many projects built using nails with plywood. In most cases, the nails used are from a pneumatic finish nailer and are used in conjunction with wood glue.

What nails do you use for subflooring?

Generally, nails (6d ring or screw shank, or 8d common) should be spaced 6 inches on center along supported panel edges and 12 inches on center on the panels’ interior supports, or as specified on the construction drawings.

Should you glue down plywood subfloor?

The answer: Glue. Although using a subfloor adhesive (or subfloor glue) is not required by code, it is a standard practice that can help prevent floor squeaks by reducing the chance for movement at the panel-to-joist connection. A quality subfloor adhesive will also increase the overall stiffness of the floor.

Can I use Liquid Nails for subfloor?

Liquid Nails LN-602 Subfloor and Deck Construction Adhesive is the perfect adhesive for subfloors, flooring and decking. It can be used inside or outside and all the extreme weather. LN-602 is perfect for bonding building materials such as wafer board, plywood, lumber, etc. and also helps with the squeaking boards.

Do I need 2 layers of subfloor?

That’s the usual approach. Almost no one puts down double-thick subfloor in residential applications (for cost and handling reasons), and both layers need to be fastened to joists. Only thin underlayment can be fastened just to the subfloor.

What do you put between subfloor and underlayment?

Quote from the video:
Quote from Youtube video: I prefer to do 3/4 inch plywood because it adds strength.

Do you need a moisture barrier on wood subfloor?

Do I need a vapor barrier for hardwood floors?” The answer is YES! Moisture can destroy hardwood flooring. It causes cupping, warping, and even mildew if not treated. You must install a moisture barrier to protect your flooring from water wicking up from below.