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<br />360 pounds can be obtained. Please contact Carlisle's <br />Systems Design and Review Group sheet sizing and <br />fastener spacing. <br /> <br />6. Cementitiou8 Wood Fiber and Gypsum - The Carlisle <br />HP-NTB Fastener is required with a minimum pullout <br />of3oo pounds. <br /> <br />3.03 SUBSTRATE PREPARATION <br /> <br />A. On retrofit-recover projects, cut and remove wet insulation, <br />as identified by specifier, and till all voids with new <br />insulation so it is relatively flush with existing surface. <br /> <br />B. For all projects, s\lbstrate must be even without noticeable <br />high spots or depressions, and must be free of accumulated <br />water, ice or snow. <br /> <br />C. Clear the substrate of debris and foreign material. Fresh <br />bitumen based roof cement must be removed or concealed. <br /> <br />3.04 INSTALLATION <br /> <br />Refer to the applicable Material Safety Data Sheets and Technical <br />Data Bulletins for applicable cautions and warnings. <br /> <br />A. Insulation Attachment <br /> <br />1. Carlisle Insulation shall be mechanically fastened to the <br />roof deck as follows: <br /> <br />a. For HP Recovery Board or minimum 1-1/2" thick <br />Polyisocyanurate, a minimum of 5 fasteners and <br />plates per 4' x 8' board are required. <br /> <br />b. For Polyisocyanurate less than 1-1/2" thick or <br />Foamular or DOW Extruded Polystyrene, any <br />thickness, a minimum of 6 fasteners and plates per <br />4' x 8' board are required. <br /> <br />Note: <br /> <br />Extruded polystyrene insulation is for <br />use directly under white Sure--Weld <br />membrane only. <br /> <br />c. Insulation boards 4' x 4', regardless of thickness, <br />must be fastened at the minimum rate of I fastener <br />and plate every 4 square feet. <br /> <br />2. Carlisle Piranha Plates, Seam Fastening Plates (2" <br />diameter) or Insulation Fastening Plates (3" diameter) <br />must be used with appropriate Carlisle Fastener for <br />insulation attachment. <br /> <br />B. Membrane Placement, Attachment and Hot Air Welding <br /> <br />1. A minimum of one perimeter sheet shall be installed at <br />edges of each roof level and 12', 10' or 8' wide <br />membrane shall be installed in the field of the roof. <br /> <br />2. Membrane sheets shall be mechanically fastened with <br />the appropriate Carlisle Fastener/Fastening Plate spaced <br />6" to 12" on center, depending on project criteria, within <br />the membrane splice. Refer to the "Design Criteria" <br />section for required number of perimeter membrane <br />sheets and fastener spacing. <br />3. Overlap adjacent membrane sheets approximately 5-1/2" <br /> <br />600319 <br /> <br />at those locations where Fastening Plates are located <br />(along length of the membrane) and a minimum of2" at <br />end roll sections (width of the membrane). <br /> <br />4. Hot air weld the membrane sheets a minimum of 1-1/2" <br />with an Automatic Hot Air Welding Machine. <br /> <br />5. Membrane that has been exposed to the elements for <br />approximately 7 days must be prepared with Weathered <br />Membrane Cleaner. Wipe the surface where Weathered <br />Membrane Cleaner has been applied with a clean, dry <br />HP Splice Wipe or other white rag to remove cleaner <br />residue prior to hot air welding. <br /> <br />C. Additional Membrane Seeurement <br /> <br />The membrane must be secured at the perimeter of each roof <br />level, roof section, expansion joint, curb, skylight, interior <br />wall, penthouse, etc., at any angle change which exceeds 2" <br />in one horizontal foot and at all other penetrations in <br />accordance with Carlisle's Details published with Carlisle's <br />Specifications. <br /> <br />D. Membrane Flashing <br /> <br />1. Flash all walls and curbs with Sme-Weld reinforced <br />membrane. Non-Reinforced membrane shall be limited <br />to inside and outside comers, field fabricated pipe seals, <br />scuppers and Sealant Pockets where the use of pre- <br />molded accessories are not practical. Terminate the <br />flashing in accordance with an appropriate Carlisle SW- <br />9 Termination Detail. <br /> <br />2. On vertical surfaces, such as walls, curbs and pipes, <br />Bonding Adhesive is not required when the flashing <br />height is 12" or less and the membrane is terminated <br />under a metal counterflashing (nailed). When a coping <br />or tennination bar is used for vertical terminations, <br />Bonding Adhesive may be eliminated for flashing <br />heights 18" or less. <br /> <br />E. Other Related Work <br /> <br />1. Walkways are required for aU traffic concentration <br />points (Le., roof hatches, access doors, rooftop ladders, <br />etc.), regardless of traffic frequency. Walkways are also <br />required if regular maintenance (once a month or more) <br />is necessary to service rooftop equipment Walkways <br />are considered a maintenance item and are excluded <br />fium the Carlisle Wammty. <br /> <br />2. Sure--Weld Heat Weldable Walkway Rolls are required <br />when walkway pads are specified and are heat welded to <br />the Sme-Weld Membrane. <br /> <br />When concrete pavers are used, they shall be loose laid <br />and installed in conjunction with a slip sheet of <br />reinforced membrane or two layers of HP Protective <br />Mat. Concrete pavers are not recommended when the <br />roof slope is greater than 2" per I horizontal foot. <br /> <br />Carlisle Interlocking PaversTM, 24" X 24" X 2", <br />weighing approximately 6 pounds per square foot may <br />be loose laid directly over the membrane. Installation <br />instruction sheets are available from Carlisle. <br /> <br />3 <br /> <br />SWMF Guide - 2/2006 <br />