Construction
Roof Insulation
Structural Insulated Panels
Insulated Concrete Forms
Below-Grade & Underslab
Sheathing/Siding Underlayment
EIFS & Architectural Shapes
Architectural Shapes
EPS Moisture Resistance
Wall Applications
Termite Resistant EPS
Home
>
Construction
>
EIFS & Architectural Shapes
>
EPS Moisture Resistance
0
Download List
Moisture Resistance Facts
Study Summary: Moisture 101
Study Summary: Moisture 102
Study Summary: Moisture 103
Study Summary: Moisture 104
Study Summary: Moisture 105
Newsletter Sign Up
I would like to receive ACH Foam Newsletters
* required field
First Name*
Last Name*
Email*
Construction Newsletter
Packaging Newsletter
Vineyards/Wineries Newsletter
Industry Links
EPS Industry Alliance
EPS Moisture Resistance Facts
Superior moisture resistance and stable R-Value from Foam-Control® EPS to protect your insulation integrity.
Architects, Engineers, Contractors, and Building owners are all concerned with the performance of their insulation. The long term performance of insulation is critical to ensuring the energy savings the insulation was specified to provide. The most common issue surrounding the long term performance of below grade insulation is loss of R-value over time.
Recent Independent testing of below grade insulation has determined the water absorption of Foam-Control EPS and an extruded polystyrene (XPS) product. Samples of EPS and XPS were excavated from the exterior foundation of a building in St. Paul, MN. The insulation was placed into service in 1993 and had 15 years of use as vertical wall insulation separating the heated building foundation from soil.
The results of the independent testing are dramatic. The EPS insulation maintained 94% of its stated R-value of 3.6 after the 15 year time period and had a moisture content of 4.8%. However, the XPS retained only 52% of its stated R-value of 5.0. The loss in R-value for the XPS is quite dramatic and can be explained very simply by the 18.9% of moisture absorption over the 15 years of use.
It is apparent that moisture that migrates through the soil, insulation, and foundation system is trapped in the cell structure of XPS. In contrast to the XPS, EPS is maintaining an equilibrium condition with the adjacent soil and is not accumulating water over the life of the building.
More Tech Data & Literature
Log In / My Account
Home
Blog
Technical
Environmental
News & Media
About Us
Contact Us
Packaging
Fabricated EPS
Custom Molded EPS
Custom Molded EPE
DuraTherm® Shipping
Containers
WineLoc® Wine Shippers
Flexible Foams
Loose Fill Peanuts
OEM
Engineered Components
Garage Door Insulation
Pipe Insulation
RV Insulation
Floatation Blocks
Lost Foam
Lost Foam Casting Process
Lost Foam Q & A
Construction
Roof Insulation
Structural Insulated Panels
Insulated Concrete Forms
Below-Grade & Underslab
Sheathing/Siding Underlayment
EIFS & Architectural Shapes
Wall Applications
Termite Resistant EPS
Geofoam
Geofoam - Transportation
Geofoam - Structural &
Earthworks
Geofoam - Commercial
Geofoam Advantages
Geofoam Properties
Geofoam Case Studies
CONNECT WITH US
Corporate Office
Phone: 1-800-525-8697
Fax: 303-292-2613
Home
Packaging
OEM
Lost Foam
Construction
Geofoam
Technical
Environmental
News & Media
About Us
Contact Us
Corporate Office: 5250 North Sherman St., Denver, CO 80216 • 1-800-525-8697 • Fax 303-292-2613 • ©2007 ACH Foam Technologies, LLC