What mil plastic should be used for a vapor barrier?

Plastic, specifically 6-mil polyethylene plastic, is the most commonly used vapor barrier. Plastic has a very low permeability rating, which means water, in its gaseous or liquid state, does not travel through it.

How thick should plastic be for moisture barrier?

Codes for residential applications often cite a 6 mil (0.006-inch thick) minimum reinforced poly vapor barrier. However, Americover recommends 10 mil or higher, for crawl space applications. Americover offers thicknesses all the way up to 20 mil.

What is the thickest vapor barrier?

Wall and floor liner. Seals out moisture and soil gases, including radon. 250 mil liner, the thickest crawl space vapor barrier available on the market. Provides strength and tear/puncture resistance.

What kind of plastic should I use in my crawl space?

Class 1 vapor barrier, also called a vapor retarder, is the only type acceptable by building code to use in crawl spaces. The class is defined using the desiccant method of ASTM E 96: Class 1 Vapor Barrier – 0.1 perm or less.

Should vapor barrier be clear or black?

Black barriers are more effective at stopping moisture evaporation, compared with the clear barrier. The black color hinders the growth of plant seeds that may reside beneath a home’s crawlspace. Plants naturally send moisture into the air, creating more moisture.

Can Tyvek be used as a vapor barrier?

Is DuPont™ Tyvek® a vapor barrier? No, DuPont™ Tyvek® is not a vapor barrier. It is made with unique material science to keep air and bulk water out while allowing moisture vapor inside walls to escape.

What is the difference between vapor barrier and moisture barrier?

Moisture barriers function to help in preventing water from entering inside of the wall cavity. On the other hand, vapor barriers basically prevent water vapor from the interior of the house to filter through the wall and condense on the warm side of the insulation.

Should I staple vapor barrier?

Tug and smooth the vapor barrier to ensure a completely smooth surface lacking wrinkles or gaps through which moisture and air may escape, defeating the vapor barrier’s purpose. Staple through the plastic into the sole plate — the horizontal board running under the studs – at bottom.

What is the thickest mil plastic?

Most construction and greenhouse plastic sheeting thicknesses start at 4 mil and go all the way up to 20 mil for the heaviest duty strength.

How thick should crawl space vapor barrier be?

Vapor barriers should be at least 6 mil in thickness to effectively cover the area and create a moisture barrier. Triangle Crawl Space Solutions uses both a 6 mil material for simple vapor barrier installation and a thicker more durable 12 mil vapor barrier material depending on the budget and needs of the home.

Should I put a vapor barrier in my crawl space?

Yes. You need a vapor barrier in your crawl space. What’s more, a moisture barrier is the minimum amount of protection that you should have in your crawl space. A vapor barrier helps you to avoid expensive repairs.

Is there a difference between vapor barrier and plastic sheeting?

In simple terms, a vapor barrier is a material that won’t allow moisture to pass through it, such as plastic sheeting. A very simple experiment to show how a vapor barrier works is to lay a plastic garbage bag down on some damp soil.

What is a 20 Mil vapor barrier?

The 20 Mil Vapor Barrier is the perfect product for small and temporary projects. Our barriers will protect your home through effective waterproofing. Is a vapor barrier necessary? If your crawl space has standing, excess water, then a vapor barrier is necessary.

What is the material used in the vapor barrier?

The reinforcement is embedded in the vapor barrier with a layer of molten polyethylene that also fuses the top and bottom layer together permanently. The bottom layer is a cream/tan color and is made from 100% virgin polyethylene resin. The only additive in this layer is the antimicrobial which aids in suppressing mold growth.

How much does it cost to ship vapor barrier?

There will be a $9.28 UPS handling charge for each roll of vapor barrier. For states West of the Mississippi River, Alaska, Hawaii and Canada- DIY orders over $200 will receive a 10% discount, however you will be responsible for paying the shipping. In most cases the 10% discount will cover most of the shipping.

What is the best crawl space vapor barrier tape?

The Waterproof Pro Seam Tape™ is the tougher, stronger, and more durable choice for your crawl space encapsulation. The 20 Mil SilverBack™ is made from 100% virgin polyethylene resin and reinforced with a 1000 denier polyester cord. This crawl space vapor barrier is idea for use on the crawl space floor because it is an actual 20 mil.