DuroSpan®

DuroSpan insulation is a Type 1, closed cell and moisture resistant insulation with a green film laminated to one side, and a silver film on the other side. With an R-value of 3.9 per inch, DuroSpan insulation is ideal for adding energy efficiency and cost savings to any project. It is easy to install and can be used in many applications; exterior sheathing, continuous insulation, basement floor, under slab insulation and cathedral ceilings. The addition of the laminated film to the top and bottom surfaces of DuroSpan insulation board provides a more durable product that is less susceptible to damage.

The reflective facer on DuroSpan insulation contains a thin layer of foil embedded within the film. The reflective facer does not increase the R-value of DuroSpan insulation.

DuroSpan insulation complies with the requirements of ASTM C578.

  • Available in 4x8 ft sheets
  • ¾, 1, 1 ½, 2 in. plus special order sizes
  • Meets all building code requirements
  • Meets ASTM C578, Type 1
  • Laminated/branded product with thin film on both sides
  • Thermal resistance - R-value 3.9/inch
  • Closed cell insulation resists moisture
  • For Retrofit and New Construction

Material Properties of DuroSpan® Insulation

Material Property Units Test Method C578, Type I Values
Nominal Density pcf NA 1.00
Compressive Resistance
Minimum @ 10% Deformation 		psi D1621 10.0
R-value
per inch thickness at mean temperature 		40 °F ft2•hr•0F/Btu C518 4.2
75 °F 3.9
Water Vapour Permeance
Maximum - 25mm (1 inch) thickness 		Perm E96 5.0
Flexural Strength
Minimum 		psi C203 25.0
Dimensional Stability
Maximum, 7 Days @ 70± 2℃ (158±40F) 		% linear change D2126 2.0
Water Absorption
Maximum 		% by volume D2861 4.0
Oxygen Index
Minimum 		volume % D2863 24
Density
Minimum 		pcf C303 0.90
DuroSpan® Insulation Videos

Remodeling a Cathedral Ceiling with DuroFoam Insulation

DuroFoam Insulation for Remodeling & New Construction

What Professionals Are saying about Plasti-Fab's DuroFoam

DuroFoam® Insulation Projects

Saskatoon Rebuild

Cathedral Ceiling Retrofit

Sayers Basement Renovation

Continuous Insulation in Hubert Residence

Hackman House

Confort Géothermique

Blogs Featuring DuroFoam® Insulation

Using DuroFoam/DuroSpan to Insulate your Basement Floor

What do customers have to say about Plasti-Fab’s DuroFoam Insulation?

Residential Roofing Insulation Solutions for New Construction and Renovation Projects

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