Materials:Soprasmart Board 180

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Materials:Soprasmart Board 180

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
Soprasmart Board 180 is a high density composite panel composed of a non-woven polyester reinforced membrane, available with either a thermofusible or sanded surface, laminated on a semi-rigid asphaltic board (Sopraboard). The base sheet is offset from the board on two adjacent edges (1 inch on one end and 3-1/2 inches on 1 side) to provide shiplap; other edges are square. To ensure a secure installation, the side lap is made with a patented DUO-SELVEDGE unique to Soprema (60% self-adhesive and 40% 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 centered over the end lap. Soprasmart Board 180 can be mechanically fastened, adhered with Duotack adhesive, or with a full coat of hot bitumen.
Soprasmart Board 180 can be used for the following applications:
  • an overlay board and base sheet on all types of insulation
  • a recovery board and base sheet on existing roofing
  • an overlay board and base sheet on wood decks
PROPERTIES:
Standards Details
Board Dimensions - 0.91m x 2.44m (3 x 8 ft)
Total Thickness (mm) - 7 mm (9/32")
Membrane Reinforcement - non-woven polyester
Total Weight - 9.5kg/m2 (1.99lb/sf)
Top Surface - film or sand
Underface - asphaltic board
Membrane Thickness - 2.2mm (86.6 mils)
Breaking Strength, MD / XD 37GP56M 17.0 / 12.5 kN/m
Ultimate Elongation, MD / XD 37GP56M 60/65%
Tear Strength ASTM D5601 60N
Cold Bending - initial 37GP56M -30
Cold Bending -90 days at 70°C 37GP56M -30
Board Thickness - 4.8 mm (3/16")
Puncture Resistance ASTM E154 500N
Water Absorption ASTM D994 0.25%
All values are nominal


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 (thermofusible surface).
Technical Data Sheet
Click below for the Technical Data Sheet (sanded surface).
Technical Data Sheet