Department of energy s building technology program 2008.
Insulating attic slope crawl space plastic sheeting.
Homeowners use plastic to cover their crawl spaces to control moisture and create a barrier against vapor.
Insulation fact sheet pdf 1 1 mb prepared by oak ridge national laboratory for the u s.
Removal of the attic floor insulation allows the attic to come to equilibrium with the living space.
Codes for residential applications often cite a 6 mil 0 006 inch thick minimum reinforced poly vapor barrier.
A heavy duty material protects and shields nearly anything from moisture dust dirt rain snow wind chemicals and much more.
Even in the most arid areas of the country mother earth constantly releases water vapor which likes to seep into your crawlspace through.
12 ft x 400 ft clear 0 31 mil plastic sheeting.
Americover offers thicknesses all the way up to 20 mil.
Polyethylene sheeting is measured in mils a mil is equal to 0 001 inch of thickness.
However americover recommends 10 mil or higher for crawl space applications.
This fact sheet will help homeowners understand how insulation works what different types of insulation are available and how much insulation makes sense for in a specific climate.
Insulate your attic to the recommended level including the attic door or hatch cover.
Loose fill or batt the common term for blanket insulation.
Without such a barrier condensation can infiltrate your home s walls and insulation creating a substantial risk of mold and mildew.
Also when the thermal boundary is at the roof deck the fiberglass insulation which could also contain dust contaminants pest remains etc are now essentially part of the interior of the house.
2 insulation priorities it is most important to.
This plastic poly sheeting from boen is made this plastic poly sheeting from boen is made from a durable water resistant material and efficiently acts as a protective barrier for a multitude of construction agriculture and demolition projects.
Item 491792 model hslw12 400.
Plastic sheeting can also help turn a crawl space into a usable storage area.
Both can be added to uninsulated attics or layered over existing material.
The plastic and the insulation will eliminate any moisture problems you have in the crawlspace such as water droplets collecting on the concrete walls.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
We use foil faced rigid insulation to keep the space under the house dry.
How to cover a crawl space floor with plastic sheeting.