• Retrofit & New Construction
• Exterior Insulating Sheathing
• Insulating Interior Basement Walls
• Insulating Foundation Walls
• Insulating Cathedral Ceilings
• Laminated/branded product with thin film on both sides
• Long-term R-value 3.9 per inch
• Closed cell insulation resists moisture
4x8 ft sheets
3/4, 1, 1-1/2, 2
DuroSpan (Type I) insulation complies with the requirements of ASTM
C578, Standard Specification for Rigid, Cellular Polystyrene Thermal
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The table below provides material properties for DuroSpan insulation
|Material Property||Units||ASTM Test
|C578, Type I
Minimum @ 10% deformation
per inch thickness at mean temperature
|% linear change||D2126||2.0|
|% by volume||D2861||4.0|
1 Compressive resistance measured at 10 percent in accordance with ASTM C578 is not intended for use when DuroSpan
insulation will be used to support long-term compressive loads. Contact your Plasti-Fab technical representative for
2 For additional information on thermal resistance requirements refer to ASTM C578.
3 ASTM Test Method C272 water absorption requires 24 hours submersion of specimen under water. The water absorption
values above are applicable to specific end-use design requirements only to the extent that the end-use conditions are similar
to requirements stated in the test method.