Can I use a tarp as a moisture barrier?
Lay a heavy plastic tarp — 6 mil or thicker — over the entire area. If you must use multiple sheets, overlap them by at least 2 feet. Use stones to hold the plastic down. The plastic acts as a vapor barrier, eliminating much of the migration of water vapor from the ground to the crawl space.
Can you use a blue tarp for a vapor barrier?
If you are talking about using a blue type tarp they are water resistant but still allow water vapor to pass thru.
What kind of plastic is used for moisture barrier?
Reinforced polyethylene plastic sheeting
Reinforced polyethylene plastic sheeting (poly) comes in a variety of thicknesses and strengths. A 6 mil thick poly is commonly used as a vapor barrier and offers short-term savings to the homeowner.
Can you use plastic as 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 do you seal a moisture barrier in a crawl space?
Unroll the vapor barrier along the vertical wall and apply it to the exposed, double-sided tape. Remember, this tape is sealing your crawl space from harmful moisture and odors, so apply it firmly and evenly around your masonry walls. Make sure the vapor barrier extends higher than the double-sided tape.
Can you use 4 mil plastic for vapor barrier?
OVERVIEW. Our 4-mil plastic sheeting is a multipurpose film perfect for a wide variety of construction or DIY projects. This medium-duty plastic sheeting is commonly used as a vapor barrier in between insulation and drywall, used as a drop cloth or a temporary cover for equipment and supplies.
What can I use as a vapor barrier?
What can I use as a vapour barrier?
- Elastomeric coatings.
- Aluminum foil.
- Paper-backed aluminum.
- Polyethylene plastic sheet.
- Asphalt-coated Kraft paper.
- Metallized film.
- Vapour retarder paints.
- Extruded polystyrene or foil-faced foam board insulation.
