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).

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 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
  • Intertek CCRR-1033

Material Properties of DuroSpan® GPS R7.5 Insulation

Material Property Test Method Units Property Values
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
Surface Burning Characteristics
Classification or Rating
CAN/ULC
S102.2
Flame Spread
Smoke Developed
220
Over 500

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