Insulating Attic Slope Crawl Space Plastic Sheeting

Homeowners use plastic to cover their crawl spaces to control moisture and create a barrier against vapor.

Insulating attic slope crawl space plastic sheeting. How to cover a crawl space floor with plastic sheeting. Without such a barrier condensation can infiltrate your home s walls and insulation creating a substantial risk of mold and mildew. Insulation fact sheet pdf 1 1 mb prepared by oak ridge national laboratory for the u s. 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.

This article will show you how to add 6 mil plastic sheeting on the ground and insulate the walls in your crawlspace. Removal of the attic floor insulation allows the attic to come to equilibrium with the living space. Polyethylene sheeting is measured in mils a mil is equal to 0 001 inch of thickness. Department of energy s building technology program 2008.

Even in the most arid areas of the country mother earth constantly releases water vapor which likes to seep into your crawlspace through. Americover offers thicknesses all the way up to 20 mil. 2 insulation priorities it is most important to. A heavy duty material protects and shields nearly anything from moisture dust dirt rain snow wind chemicals and much more.

Insulate your attic to the recommended level including the attic door or hatch cover. We use foil faced rigid insulation to keep the space under the house dry. The plastic and the insulation will eliminate any moisture problems you have in the crawlspace such as water droplets collecting on the concrete walls. Item 491792 model hslw12 400.

Loose fill or batt the common term for blanket insulation. 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. Both can be added to uninsulated attics or layered over existing material. 12 ft x 400 ft clear 0 31 mil plastic sheeting.

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. Plastic sheeting can also help turn a crawl space into a usable storage area. Provide the recommended level of insulation under floors above unheated spaces around walls in a heated basement or unventilated crawl space and on the edges of slabs on grade.