How thick should POLY be for vapor barrier?

6 mils
To classify as a vapor barrier, a material must have a perm rating of 0.1 or below. Poly sheeting that is 6 mils (0.06 perms) and thicker meets this bare minimum.

What is the best material to use for a vapor barrier?

polyethylene
In existing spaces, oil-based paints or vapor-barrier latex paints offer an effective moisture barrier. Avoid fully impermeable barriers, such as polyethylene or vinyl wall coverings, on spaces that are air-conditioned.

What mil plastic goes under concrete?

10 mil
The most commonly used vapor barrier under concrete slabs is polyethylene (poly) plastic sheeting with a thickness of 10 mil or 15 mil.

What is polyethylene vapor barrier?

The primary job of a vapor barrier is centered on preventing and minimizing the chance of vapor diffusion. It is a thin layer of impermeable material—usually polyethylene sheeting. A vapor barrier is used during the construction of a building to prevent moisture damage to the building’s fabric.

How thick should a vapor barrier be under a slab?

The American Concrete Institute’s Guide for Concrete Floor and Slab Construction recommends that the thickness of the vapor retarder be at least 10 mils.

Should you put a vapor barrier under a concrete slab?

If you have a concrete floor that’s in continuous contact with a source of moisture, you’re going to have problems. This is why a vapor barrier under concrete is essential. Vapor barriers are a way to keep moisture from getting into the concrete.

What is the difference between a Vapour barrier and a breather membrane?

– as well as improving the air tightness of a building. To summarise, there are two important differences between a breather membrane and a vapour control layer: A breather membrane is positioned on the outer side of the insulation, allowing vapour to escape from inside while repelling any water that tries to enter.

Why choose stegohome 15-mil vapor barrier?

StegoHome 15-Mil Vapor Barrier is made from a proprietary blend of prime virgin polyolefin resins and additives, a combination lending to great value and effectiveness in protecting the concrete slab from moisture intrusion.

What is vapor barrier made of?

This vapor barrier is manufactured with only the highest grade of prime, virgin, polyolefin resins which allow this product to greatly resist degradation. This product is also engineered for superior strength and durability, never flakes and is resistant to tears, snags, punctures, and cracks.

What is hp underslab vapor barrier?

PERMINATOR HP underslab vapor barrier is a new generation of polyolefin-based resin/chemical technology.

What is Perminator® underslab vapor barrier?

PERMINATOR ® underslab vapor barrier is a new generation of polyolefin-based resin/chemical technology. PERMINATOR provides the vapor barrier industry with a highly effective, economical choice for helping to reduce the penetration of moisture and water vapor through the slab into the structure, thereby helping to reduce fungus, mildew,…