b'CSA 123.26:21TABLE 3: PERIMETER ZONE REQUIREMENTSSILVER GOLDEither a bar or plate and fasteners shall be installed over the membrane / coping. Attachment spacing shall be equal to or narrower than the membrane seam attachment, or a maximum of six inches. This is intended as a peel-stop in a wind event. Refer to Figure 1.OR:Perimeter zone design load shall be increased by 30 per cent for parapets taller than three ft. and 50 per cent for parapets with a height lower than three ft.FIGURE 1A continuous bar over the membrane (See Clause 6.1.9.)Source: FEMA P-424.Excerpted from CSA 123.26:21 Standard.Roof Consulting Services BURPAKByThird Party Rooftop Quality Assurance Project Management & AdministrationSubstrate Structural Testing Asbestos TestingAdhesion & Fastener Testing Plaza Decks & Parkades 11155St-CatherineStreetEastRoof Condition AssessmentRoof Anchor Design & TestingRoong Design & Sepcications Green Roofs & Photovoltaic Montreal-East,QC H1B0A4Tel.:514645-4561604.295.8070rimkus.com bitumar.com20 lROOFINGBClSPRING 2025'