What Is The Best Material For A Subfloor?

Do I need 2 layers of subfloor?

The end joints must fall on a joist.

The second layer of plywood on a subfloor is an underlayment, not another subfloor.

If you do replace your subfloor with 3/4″ T&G CDX, you won’t need an underlayment and you can maintain a nominal elevation of flooring throughout..

Is Advantech better than plywood?

Advantech is 62 percent stronger than typical plywood when it comes to bending power.

What is the best subfloor for a bathroom?

PlywoodPlywood as a Subfloor Material Traditionally, exterior grade plywood has been the subfloor material of choice for many bathroom flooring projects. Plywood is made by gluing alternating layers of wood veneer. CDX plywood (¾”) in particular is used often because it has a high level of resistance to moisture and humidity.

Is felt underlay better than foam?

Wool felt is a traditional choice of underlay and, although not quite as cushioning an underlay as PU foam, it recovers well from furniture marks and won’t flatten over time. … Felt underlay is extra firm so it will provide great support to the carpet where there is a lot of footfall.

Is OSB a good subfloor?

A few builders say that they prefer OSB over plywood for flooring because the surface (when new) is always clean, flat, and knot-free. Simply put, many contractors find OSB to be a more consistent product than plywood or other types of material for subfloor: every sheet is the same.

Is underlayment necessary?

You will need moisture-proof underlayment or vapor barrier when there is a chance of moisture migrating upward from a concrete slab, tile, or cement board. Even a wood subfloor or flooring over a crawlspace or other non-climate-controlled space can be subject to rising moisture.

Which underlayment should I use?

The normal choice is a thin foam pad material made of polyethylene or polypropylene, which rolls out in sheets. Plywood subfloors: A breathable foam-type underlayment is generally used when installing laminate flooring over plywood or OSB subfloors.

What is the thickest underlayment?

Standard underlayment. This is the most commonly used underlayment. It is also 3mm thick (1/8” thick) and is best installed over wood subflooring. It only offers basic sound reduction.

Is plywood or OSB better for a subfloor?

Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.

The recommended thickness of the plywood subfloor is governed by the spacing of the joists. Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but slightly thicker 3/4-inch plywood should be used for joists spaced further apart.

What are the different types of subfloors?

Subflooring 101 – The 4 Main Types of SubfloorPlywood. … Oriented Strand Board (OSB) … Concrete Slab. … High-Performance Panels. … Moisture Issues. … Subfloor Installation Management Tips.

What is the best floor underlayment?

When installing hardwood or engineered wood flooring, the best underlay options are cork and foam. However, foam does have more give than cork so, while it is the more popular option, we recommend cork. Cork has less give, making it less likely to flex underneath your planks.