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Fasteners/Piranha Xtra Plates are required with a minimum pullout of 360 pounds. 2. Membrane sheets shall be mechanically fastened with , � the appropriate Carlisle Fastener/Fastening Plate spaced 5. Oriented Strand Board (OSB), minimum 7/16"thick; 6", 12" or 18" on center, depending on project criteria, The Carlisle HP-X Fasteners/Piranha Plates or HP-Xtra within the membrane splice. Refer to the Sure-Flex Fasteners/Piranha Xtra Plates aze required with a Specification for required number of perimeter minimum pullout of 300 pounds per fastener. membrane sheets and fastener spacing. 6. Cementitious Wood Fiber and Gypsum - The Carlis(e 3 Overlap adjacent membrane sheets approximately 5-1/2" HP-NTB Fastener is required with a minimum pullout of at those locations where Fastening Plates are located 300 pounds. (along length of the membrane) and a minimum of 2" at end roll sections (width of the membrane). 3.03 SUBSTRATE PREPARATION 4. Heat weld the membrane sheets a minimum of 1-1/2" A. On retrofit-recover projects, cut and remove wet insulation, with an Automatic Heat Welding Machine. as identified by specifier, and fill all voids with new insulation so it is relatively flush with existing surface. C. Additional Membrane Securement B. For ail projects, substrate must be even without noticeable The membrane must be secured at the perimeter of each roof high spots or depressions, and must be free of accumulated level, roof section, expansion joint, curb, skylight, interior water, ice or snow. wall, penthouse, etc., at any angle change which exceeds 2" in one horizontal foot and at all other penetrations in C. Clear the substrate of debris and foreign material. Fresh accordance with Cazlisle's Details published with Carlisle's bitumen based roof cement must be removed or concealed. Specifications. 3.04 INSTALLATION D Membrane Flashing Refer to the applicable Material Safety Data Sheets and Technical Flash all walls and curbs with Sure-Flex reinforced Data Bulletins for applicable cautions and wamings. membrane. Non-Reinforced membrane shall be limited to inside and outside comers, field fabricated pipe seals, A. Insulation Attachment scuppers and Sealant Pockets where the use of pre-molded accessories are not practical. Terminate the flashing in 1 Carlisle Insulation shall be mechanically fastened to the accordance with an appropriate Carlisie Tertnination Detail. roof deck as follows: E. Other Related Work a. For HP Recovery Board, Dens-Deck or minimum 1-1/2" thick Polyisocyanurate, a minimum of 5 1. Walkways are required for all traffic concentration fasteners and plates per 4' x 8' boazd aze required. points (i.e., roof hatches, access doors, rooftop ladders, etc.), regazdless of traffic frequency. Walkways are also b For Polyisocyanurate less than 1-1/2" thick or required if regular maintenance (once a month or more) Foamular or DOW Extruded Polystyrene, any is necessary to service roo8op equipment. Walkways thickness, a minimum of 6 fasteners and plates per are considered a maintenance item and are excluded 4' x 8' boazd aze required. from the Carlisle Warranty, Note: Sure-Flex PVC membrane cannot be a. Sure-Flex Heat Weldable Walkway Rolls are installed directly over extruded required when walkway pads are specified and aze polystyrene insulation. A layer of HP heat welded to the Sure-Flex Membrane. Protective Mat must be installed over the insulation prior to installing membrane b. When concrete pavers are used, they shall be loose (approved with white Sure-Flex laid and installed in conjunction with a slip sheet of membrane only). reinfocced membrane. Concrete pavers are not recommended when the roof slope is greater than c. Insulation boards 4' x 4', regardless of thickness, 2" per 1 horizontal foot. must be fastened at the minimum rate of 1 fastener and plate every 4 square feet. c. Carlisle InterlockingTM Rubber Pavers, 24" X 24" X 2", weighing approximately 6 pounds per square 2. Cazlisle Piranha Plates, Seam Fastening Plates (2" foot may be loose laid directly over the membrane. diameter) or Insulation Fastening Plates (3" diameter) Installation instruction sheets are available from may be used with appropriate Carlisle Fastener for Carlisle. insulation attachment. 2. Copings, counterflashing and ot6er metal work, not supplied by Carlisle, shall be fastened to prevent metal B Membrane Placement, Attachment and Heat Welding from pulling free or buckling and sealed to prevent moisture from entering the roofing system or building. 1. A minimum of two perimeter sheet shall be installed at edges of each roof level and 81" wide membrane shall Attach copies of the applicable Carlisle Details t6at pertain to be installed in the field of the roof. the ind'mdual project to complete a bid package submittal. 602125 3 Sure-Flex "MF" Guide - 12/2004