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Details shall be included to show the termination of the panels at the perimeter of lined areas, the methods of <br /> sealing around penetrations, and methods of anchoring. <br /> Placement of the lining shall not commence until the shop drawings and details have been approved by the <br /> owner, or his representative. <br /> 1.04 Factory Fabrication <br /> The individual XR-5® liner widths shall be factory fabricated into large sheets custom designed for this project so <br /> as to minimize field seaming. The number of factory seams must exceed the number of field seams by a factor <br /> of at least 10. <br /> A two-inch overlap seam done by heat or RF welding is recommended.The surface of the welded areas must be <br /> dry and clean. Pressure must be applied to the full width of the seam on the top and bottom surface while the <br /> welded area is still in a melt-type condition.The bottom welding surface must be flat to insure that the entire <br /> seam is welded properly. Enough heat shall be applied in the welding process that a visible bead is extruded <br /> from both edges being welded. The bead insures that the material is in a melt condition and a successful <br /> chemical bond between the two surfaces is accomplished. <br /> Two-inch overlapped seams must withstand a minimum of 240 pounds per inch width dead load at 70° F. and <br /> 120 pounds per inch width at 160° F. as outlined in ASTM D 751. All seams must exceed 550 lbs. bonded seam <br /> strength per ASTM D 751 Bonded Seam Strength Grab Test Method, Procedure A. <br /> 1.05 Inspection And Testing Of Factory Seams <br /> The fabricator shall monitor each linear foot of seam as it is produced. Upon discovery of any defective seam, <br /> the fabricator shall stop production of panels used in this work and shall repair the seam, and determine and <br /> rectify the cause of the defect prior to continuation of the seaming process. <br /> The fabricator must provide a Quality Control procedure to the owner or his representative which details his <br /> method of visual inspection and periodic system checks to ensure leak-proof factory fabrication. <br /> 1.06 Certification and Test Reports <br /> Prior to installation of the panels, the fabricator shall provide the owner, or his representative, with written <br /> certification that the factory seams were inspected in accordance with Section 1.05. <br /> 1.07 Panel Packaging and Storage <br /> Factory fabricated panels shall be accordian-folded, or rolled, onto a sturdy wooden pallet designed to be <br /> moved by a forklift or similar equipment. Each factory fabricated panel shall be prominently and indelibly <br /> marked with the panel size. Panels shall be protected as necessary to prevent damage to the panel during <br /> shipment. <br /> Panels which have been delivered to the project site shall be stored in a dry area. <br /> 1.08 Qualifications of Suppliers <br /> The fabricator of the lining shall be experienced in the installation of flexible membrane lining, and shall <br /> provide the owner or his representative with a list of not less than five (5) projects and not less than 500,000 <br /> square feet of successfully installed XR-5 synthetic lining.The project list shall show the name, address, and <br /> telephone number of an appropriate party to contact in each case. The manufacturer of the sheet goods shall <br /> provide similar documentation with a 10 million square foot minimum, with at least 5 projects demonstrating <br /> 10+ years service life. <br /> The installer shall provide similar documentation to that required by the fabricator. <br /> 1.09 Subgrade Preparation By Others <br /> Lining installation shall not begin until a proper base has been prepared to accept the membrane lining. Base <br /> material shall be free from angular rocks, roots, grass and vegetation. Foreign materials and protrusions shall be <br /> removed, and all cracks and voids shall be filled and the surface made level, or uniformly sloping as indicated <br /> 20 <br />