15 Apr, 2016 A1:2009; LST EN ISO 1182:2010, LST EN ISO 1716:2010, GB 8624-2006, BS 476 part 4
Water impermeability, Warm water, Soak-dry, Freeze-thaw, Heat Rain: under CE EN 12467:2012 System 3 Category A for External Finishes.
Water impermeability: Traces of moisture appeared on the under surface of the sheet, but no formation of drops of water on the underside of the sheet after 24 hours.
Freeze-thaw: Not h
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