How much should a vapor barrier cost?
Vapor Barrier Installation A standard 20-millimeter vapor barrier typically costs from $0.50 to $0.70 per square foot. In addition, you’ll need to buy tape to secure the vapor barrier, which usually costs around $50 for a 4-inch-by-180-foot roll.
How much is a roll of vapor barrier?
A single roll of black 6mm vapor barrier (10×100) covering 1,000 square feet will cost approximately $70.00 at one of the big hardware stores.
Is a vapor barrier worth it?
It can make the soil moist or lead to water actually ending up in the crawl space itself depending on soil conditions. A vapor barrier will prevent this rapid evaporation from causing problems. The other big reason for moisture comes from condensation as air temperature changes.
How many mils should a 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.
How long do vapor barriers last?
When properly installed, a vapor barrier should last twenty years or more.
How far up wall should vapor barrier be installed?
about six inches
Experts say the plastic should be secured at a distance of about six inches up the wall. Next, use the landscape fabric stakes to keep it protected for potential future disturbances. Chances are that someone will have to slide around in the crawlspace later to fix a pipe or run a new cable.
Can I install a new vapor barrier over old?
Our best practices are that the old vapor barrier is left in place and the new one is placed over it. The old barrier even if it does not cover the entire crawl space serves to provide some additional moisture blocking and also help protect your new vapor barrier from any rocks or debris on your crawl space floor.
Is black vapor barrier better than clear?
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.
How thick should a vapor barrier be under a concrete 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.
What mil plastic should you put 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’s the difference between 6 mil and 15 mil vapor barrier?
The standard 6 mil stuff that contractors use gets holes punched all through it as you walk on it to place steel rebar, wire re-mesh, and concrete; effectively eliminating it’s purpose as a vapor barrier. This 15 mil Yellow Guard had none of those problems
10 Mil vapor barrier cost: $449.99 14′ x 210′ roll. Stego vapor barrier tape cost: $44.99 4″ x 180′ roll. White Cap Construction Supply has about 144 branch locations in 29 states in the U.S. White Cap also has an online store you can purchase vapor barriers from and have them shipped directly to you.
Why are vapor barrier materials so expensive?
The thicker the vapor barrier material, the better protection it provides. This results in a higher cost for the material. The table below breaks down the cost per roll and per square foot for different thicknesses.
What size of plastic sheeting for vapor barrier?
I personally use 6 mil black plastic 20′ x 100′ rolls (from Amazon.com) most of the time on my jobs, and sometimes we use the Stego Wrap brand of vapor barrier, mostly because I have an A.H. Harris & Sons Inc. distributor local to my location. AMERICOVER – They sell both a 15 mil and 10 mil polyethelene sheeting.