Materials:Xpress ISO

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Materials:Xpress ISO

Notice to the Reader:

The roofing assembly / material information published in the RCABC Roofing Practices Manual and offered below does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Manufacturer: Soprema Inc.
Accepted for RoofStar Guarantee Program
Date TBA
Product Summary
Xpress ISO overlay board is a polyisocyanurate insulation board laminated with adhesive to a mineral wool fibre insulation made from basalt rock and steel slag with a factory-applied polyester reinforced SBS modified bitumen base sheet on the top surface with a thermofusible plastic film or a sanded surface. The base sheet is offset from the board on two adjacent edges (1" on end and 3 3/8" on side) to provide shiplap, other edges are square. . XPRESS ISO can be mechanically fastened with SOPRAFIX FASTENERS AND PLATES or adhered to the substrate with COLTACK or DUOTACK adhesive or hot bitumen.
To ensure a secure installation, Xpress ISO is made with the patented DUO-SELVEDGE, a lap unique to Soprema (70% self-adhesive and 30% thermofusible). Its self-adhesive component protects combustible surfaces and its thermofusible properties provide an efficient seal end laps can be aligned then sealed by heat welding a minimum 12" wide membrane reinforcing strip.
Xpress ISO is available in lm x 4.9m (39" x 16') up to 89 mm (3½") thick and lm x 2.4m (39" x 8') from 89 mm to 114 mm (3½" - 4½") thick. The larger boards are folded in two for easy shipping and handling. It can be mechanically fastened in seam with SOPRAFIX FASTENERS and PLATES, bonded with COLTACK or DUOTACK adhesive, or bonded in hot asphalt.
XPRESS ISO is an overlay board and base sheet combined, adding various thermal resistance values to primary insulation used as the overlay and base sheet combined.
MEMBRANE PROPERTIES TEST METHOD TYPICAL RESULTS
Reinforcement Non-woven Polyester
Breaking Strength MD/XD) CAN/CGSB 37.56-M (kN/m) 17.0/12.5
Ultimate Elongation CAN/CGSB 37.56-M (%) 60/65
Tear Strength ASTM D5601 (N) 60
Cold Bend - Initial CAN/CGSB 37.56-M -30°C
Cold Bend - -90 days @ 70°C CAN/CGSB 37.56-M -30°C
MINERAL WOOL PROPERTIES TEST METHOD TYPICAL RESULTS
Thermal Resistance R-4/inch (25mm) thickness
Surface Burning Characteristics ASTM E84 Flame Spread - 3, Smoke Dev - 0
Water Absorption ASTM C209 (%) <1.1
Compressive Properties ASTM C871/C665 (psi) 14
Linear Shrinkage ASTM C356 (%) 0.19
POLYISO PROPERTIES TEST METHOD TYPICAL RESULTS
Thermal Resistance ASTM C518 1" - RSI-l.06 (R-6)
1.5" - RSI-1.58 (R-9)
2" - RSI-2.13 (R12 1)
Dimensional Stability ASTM D2126 (%) <2
Compressive Strength ASTM D1621 (kPa/psm) 138/20
Product Density ASTM D1622 (kg/m3) 32 (2.0 pcf)
Water Absorption ASTM C209 (% by volume) <1
Water Vapour Permeance ASTM E96 (ng/pa.s.m2) 57.5 (<1 Perm)


Soprema Inc. may modify the composition of its products without prior notice Consequently orders will be filled according to the latest specification.

Click below for the Technical Data Sheet.
Technical Data Sheet



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