In view of the diverse variety of available materials, this Singapore Standard specifies the performance requirements and evaluation methods for the bituminous and non-bituminous preformed membrane for use as waterproofing material for concealed roofing system. It covers both fully bonded and loosely-laid preformed membranes. This standard does not cover the weathering effect in exposed roofing system.
SS 374-1994 history
1994SS 374-1994 Specification for preformed waterproofing membranes for concealed roof