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1. Over the properly installed and prepared flashing substrate,flashing adhesive shall <br /> be applied according to instructions found on the Product Data Sheet. The <br /> membrane adhesive shall be applied in smooth,even coats with no gaps,globs or <br /> similar inconsistencies. <br /> 2. Only an area which can be completely covered in the same day's operations shall <br /> be flashed. The bonded sheet shall be pressed firmly in place with a hand roller. <br /> 3. No adhesive shall be applied in seam areas that are to be welded. <br /> C. All flashings shall mechanically terminated a minimum of 8 inches above the finished <br /> roofing surface using approved fasteners and counterflashing bar unless otherwise <br /> indicated in the Contract Drawings. Flashing heights less than 8" shall be accepted in <br /> writing by the Manufacturer's Technical Department. <br /> D. All flashing membranes shall be consistently adhered to substrates. All interior and <br /> exterior corners and miters shall be cut and hot-air welded into place. No bitumen shall be <br /> in contact with the(roof)membrane. <br /> E. All flashings shall be hot-air welded at their joints and at their connections with the(roof) <br /> membrane. <br /> F. All flashings that exceed 30 inches(0.75 m)in height shall receive additional securement. <br /> Consult Manufacturer's Technical Department for securement methods. <br /> G. Corners shall be flashed using the membrane manufacturer's pre-formed corners. <br /> H. Polymer Clad sheet metal incorporated into the roofing system shall be sealed off with a <br /> heat welded stripping ply. The stripping ply shall extend four inches beyond sheet metal <br /> onto roof membrane and fit closely to edge of sheet metal. <br /> Soil Pipe/Pipe Penetration: <br /> 1. Provide field wrapped pipe penetration flashing or manufacturer's pre-fabricated <br /> pipe boot as shown in detail drawing. <br /> 2. Apply aluminum tape to penetration if asphalt contamination is present. <br /> 3. Extend existing pipe to obtain a minimum 8"finished flashing height. <br /> 4. Cut existing pipe to obtain a maximum 12" finished flashing height. <br /> 5. Horizontal flashing membrane shall be hot-air welded a minimum of four inches <br /> onto the membrane. <br /> 6. Vertical flashing membrane shall be fully adhered to pipe penetration and extend <br /> a minimum of 1.5" horizontal at the base of penetration. Hot-air weld vertical <br /> flashing membrane to horizontal flashing membrane. <br /> 7. Install stainless steel draw band and sealant or hot-air weld flashing cap to <br /> terminate top edge of pipe flashing. <br /> 3.05 HOT-AIR WELDING OF SEAM OVERLAPS <br /> A. General <br /> 1. All seams shall be hot-air welded. Seam overlaps should be 3 inches (75 mm) <br /> wide when automatic machine-welding and 4 inches(100 mm)wide when hand- <br /> welding,except for certain details. <br /> 2. Welding equipment shall be provided by or approved by the membrane <br /> manufacturer. All mechanics intending to use the equipment shall have <br /> successfully completed a training course provided by a membrane manufacturer's <br /> technical representative prior to welding. <br /> Sebastian Corners Roof Replacement 07 54 00-8 Thermoplastic Single Ply Roofing <br />