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INDIAN RIVER COUNTY — COURTHOUSE <br />LOW SLOPE - ROOFING REPLACEMENT PROJECT <br />AN i RY 26 2024 (REVISED APRIL 23, 2021) <br />PAGE 12 <br />SECTION 075520 <br />MODIFIED BITUMINOUS MEMBRANE ROOFING <br />i) Ultimate Elongation (avg.) @ 73°F (231C): 55% (ASTM D 5147) <br />j) Dimensional Stability (max): 0.1 % (ASTM D 5147) <br />k) Compound Stability (min): 250°F (121° C) (ASTM D 5147) <br />1) Granule Embedment (max loss): 2.0 grams per sample (ASTM D 5147) <br />m) Approvals: UL Class listed, FM Approved (products shall bear seals of approval) <br />n) Reinforcement: fiberglass mat or other meeting the performance and dimensional <br />stability criteria <br />o) Surfacing: ceramic granules <br />Siplast Paradime 30 FR TG BW <br />B. Flashing Membrane Assembly: A flashing membrane assembly consisting of a <br />prefabricated, reinforced, Styrene -Butadiene -Styrene (SBS) block copolymer modified asphalt <br />membrane with a continuous, channel -embossed metal -foil surfacing. The finish ply shall <br />conform to ASTM D 6298 and the following physical and mechanical property requirements. <br />Siplast Veral flashing system, aluminum finish <br />1. Cant Backing Sheet and Flashing Reinforcing Ply <br />a) Thickness (avg): 102 mils (2.6 mm) (ASTM D 5147) <br />b) Thickness (min): 98 mils (2.5 mm) (ASTM D 5147) <br />c) Weight (min per 100 ft2 of coverage): 72 Ib (3.5 kg /M2) <br />d) Maximum filler content in elastomeric blend: 35% by weight <br />e) Low temperature flexibility @ -15° F (-26° C) - PASS (ASTM D 5147) <br />Y) Peak Load (avg) @ 73°F (230C): 30 Ibf/inch (5.3 kN/m) (ASTM D 5147) <br />g) Peak Load (avg) @ 0°F (-180C): 75 Ibf/inch (13.2 kN/m) (ASTM D 5147) <br />h) Ultimate Elongation (avg.) @ 73°F (230C): 50% (ASTM D 5147) <br />i) Dimensional Stability (max): 0.1 % (ASTM D 5147) <br />j) Compound Stability (min - sheet): 250°F (121°C) (ASTM D 5147) <br />k) Compound Stability (min -adhesive coating): 212°F (100°C) (ASTM D 5147) <br />1) Approvals: UL Class listed, FM Approved (products shall bear seals of approval) <br />m) Reinforcement: fiberglass mat or other meeting the performance and dimensional <br />stability criteria <br />n) Back Surfacing: polyolefin film <br />Siplast Paradiene 20 SA <br />2. Metal -Clad Modified Bitumen Flashing Sheet <br />a) Thickness (avg): 142 mils (3.6 mm) (ASTM D 5147) <br />b) Thickness (min): 138 mils (3.5 mm) (ASTM D 5147) <br />c) Weight (min per 100 ft' of coverage): 92 Ib (4.5 kg /M2) <br />d) Coating Thickness — back surface (min): 40 mils (1 mm) (ASTM D 5147) <br />e) Low temperature flexibility @ 0° F (-18° C): PASS (ASTM D 5147) <br />0. Peak Load (avg) @ 73°F (230C): 85 Ibf/inch (15 kN/m) (ASTM D 5147) <br />g) Peak Load (avg) @ 0°F (-180C): 180 Ibf/inch (31.7 kN/m) (ASTM D 5147) <br />h) Ultimate Elongation (avg) @ 73°F (231C): 45% (ASTM D 5147) <br />i) Tear -Strength (avg): 120 Ibf (0.54 kN) (ASTM D 5147) <br />