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System Specifications <br /> MECHANICALLY ATTACHED TPO Revised March 2015 <br /> b. 6'perimeter sheets are used with 10'and 12'field shets <br /> 2. Over steel roof decks <br /> a. All seams must run perpendicula,r'to the ribs of the deck. <br /> This requirement,will necessitate that perimeter sheets <br /> on two sides of the roof(where the seams would be <br /> running parallel with the flutes-of the deck)be turned so <br /> that the seams in the perimeter sheets run perpendicular <br /> to the deck flutes. See Detail MHT=FM-308B. <br /> b. In lieu of changing the orientation:of the perimeter half <br /> sheets where the seams would normally run parallel to <br /> the deck flutes;the contractor can elect to install <br /> fastener row",fingers"as depicted in Detail MHT-FM- <br /> 308A. <br /> b. 10" RUSS Method <br /> 1. When field sheets are positioned parallel to a roof perimeter, <br /> 10"wide'Sure.Weld Pressure-Sensitive RUSS (with 3"wide <br /> tape each side]shall be placed approximately down the center of <br /> the 8', 10',or 12'wide TPO field membrane sheets.When a 10" <br /> RUSS divides afield sheet in half,.two.perimeter sheets are <br /> created. <br /> 2. Unroll and position the 10"wide TPO Pressure-Sensitive RUSS <br /> over the insulation substrate where membrane securement is <br /> desired. Locate the RUSS with the fastener markings and tape <br /> facing upwards, <br /> 3. Position Mule-Hide Seam Plates at the same spacing as the field <br /> sheets and secure with an appropriate fastener. Do not fasten <br /> plates over top,of the release liner as this will cause the liner to <br /> tear when removed. <br /> 4. Remove any dirt or dust resulting from plate installation.Any <br /> residual dust/dirt will be detrimental to the bond strength of the <br /> tape adhesive. <br /> 5. Position the TPO membrane and thoroughly clean the <br /> underside of the TPO membrane using.Weathered <br /> Membrane.C.leaner if necessary.(The entire membrane <br /> surface where the tape is to contact must.be clean.The <br /> adhesive on the TPO Pressure Sensitive RUSS will not adhere <br /> to dusted/dirty surfaces). <br /> 6. Using a Scotch Bdte©Pad,apply TPQ Primer to the underside <br /> of'the TPO membrane in a circular motion in the area that will <br /> come in contact with the.two strips of 3"wide tape:The properly <br /> primed area will be uniform in color without streaks and free from <br /> globs or puddles. <br /> 7. Remove the release.liner from the tape on the TPO Pressure- <br /> Sensitive RUSS pulling it parallel to the roof deck. <br /> B. Once the TPO Primer has dried to.the touch but is still tacky, roll <br /> the deck membrane onto the exposed tape and apply hand <br /> pressure to the seam area. <br /> Page 18 05-1111 MULE-HIDE PRODUCTS CO.,INC <br />