NRCA Tile Installer Practice Questions - NRCA ProCertified Tile Installer Exam

According to ASTM D4637, what are the three standard thicknesses available for EPDM single-ply membranes?

30-mil, 45-mil, and 60-mil 45-mil, 60-mil, and 90-mil 60-mil, 75-mil, and 90-mil 45-mil, 75-mil, and 100-mil

45-mil, 60-mil, and 90-mil

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