DuroSpan® GPS R7.5 Insulation Board is a higher R-value product with an R-value of 4.7 per inch manufactured with NEOPOR – a graphite enhanced polystyrene. GPS is a closed cell insulation with a silver-gray colour that meets or exceeds requirements for expanded polystyrene (EPS) manufactured to CAN ULC S701.1.

DuroSpan GPS R7.5 is manufactured to meet code requirements, with a thin film laminated to both sides for a more durable, flexible product. This easy to cut and install insulation has Low GWP, maintain a permanent R-value for the life of the product, and is part of an air barrier system. DuroSpan GPS R7.5 demonstrates code compliance for Intertek CCRR-1033.

DuroSpan GPS R7.5 is an excellent choice for insulating applications with low water absorption properties, and has a compressive resistance of 10 psi. Markings provided on the printed face of DuroSpan GPS R7.5 insulation assist in cutting to required dimensions and spacing of fasteners into framing.

Available in: 4x8, 4x9 and 4x10 feet sizes, 2 feet high bundles

DuroSpan GPS is manufactured in thicknesses of 1-1/16 – R5, 1-5/8 – R7.5, and 2-1/8 – R10, as well as other R-values available upon request.

  • Enhanced thermal resistance & permanent R-value
  • Reduces heat loss
  • Improved Interior temperatures
  • Durable product less susceptible to handling damage
  • Easy to cut and install
  • Meets CAN/ULC-S701-Type 1
  • Intertek CCRR-1033

CAN/ULC-S701.1 Material Properties of DuroSpan® GPS R7.5 Insulation

Material Property Test Method Units Type 1
Thermal Resistance
Minimum RSI per 25mm (R per inch)
ASTM
C518
m20C/W
(ft2•h•0F/BTU)
0.82
(4.7)
Compressive Resistance
Minimum @ 10% Deformation
ASTM
D1621
kPa
(psi)
70
(10)
Flexural Strength
Minimum
ASTM
C203
kPa
(psi)
170
(25)
Water Vapour Permeance
Maximum
ASTM
E96
ng/(Pa.s.m2)
(Perms)
30
(0.5)
Water Absorption
Maximum
ASTM
D2842
% By Volume 6.0
Dimensional Stability
Minimum
ASTM
D2126
% Linear Change 1.5
Limiting Oxygen Index
Minimum
ASTM
D2863
% 24
Standard Products
Width, mm (in) Length, mm (ft) RSI - m2oC/W R-value - ft2•hr•oF/BTU
1,222 (4) 2,444, 2,743 or 3,658 (8, 9 or 10) 0.88, 1.32, 1.76 5.0, 7.5 or 10.0

Next Steps


Talk to a Rep

Talk to an EPS Product Specialist in your area who will help you with products and pricing.


Connect with Us

Send us your questions and one of our EPS experts will get back with you.