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Fort Nelson NRRM MECHANICAL SECTION 15250 Airport Terminal Building INSULATION Page: 5 Washroom Renovations Jacket: Insulation shall be protected with a minimum 5mm (0.020”) thick aluminum jacket attached within 12mm stainless steel band and/or 12mm x 20mm stainless steel Robertson screws. Application Insulation Aluminum: On rectangular duct, secure insulation using weld pins (cup head type) at 300mm on centre (min. 2 rows per side). On round duct, secure insulation using stainless steel banding at 300 mm on centre. On rectangular duct, all circumferential and longitudinal seams should incorporate a standing lap and/or drive cleat system and be installed in a manner that will prevent water transmission. Cross breaks should be incorporated to add additional stiffness to the jacket. Screws should not be used where the insulation vapour barrier can be penetrated. Seal all penetrations of aluminum jacket using a suitable exterior grade silicone caulking. 7. Duct insulation adhesives and coatings shall be non-toxic as defined by W.C.B. Regulations. END of SECTION 15250 February 2012 JM BEAN & CO. LTD 1130.10
Fort Nelson NRRM PLUMBING SECTION 15400 Airport Terminal Building Page: 1 Washroom Renovations 15410 PLUMBING SYSTEM PIPING 1. From indicated connection points, provide distribution systems for cold, hot, and hot water recirculation including mains, risers, branches, check valves, shock absorbers, and other parts as specified and connect to fixtures requiring these services. 2. Sizes of mains, risers, branches, connections shall be as indicated. Where sizes of connections to fixtures are not indicated, use sizes not less than the following: - 25mm [1"] for W.C. flush valve or full size of inlet to valve, whichever is larger. - 25mm [1"] for urinal flush valve. - 12mm [½"] for sink. - 10mm [3/8"] for lavatory. - Others as recommended by fixture manufacturer. 3. Provide isolation valves at base of each riser, at each washroom group, and at each fixture, as otherwise indicated. Valves shall be in an accessible location with access panel. 4. On supply piping to fixtures having flush valves or faucets, provide manufactured water hammer arresters in accordance with Standard PD1-WH201 from the Plumbing and Drainage Institute. 5. Drainage: Grade horizontal piping at uniform slope to low points for drainage. Where constant pitch cannot be maintained for long runs, establish intermediate low point and rise to new level. Grade branches to drain to main or riser. At bottom of riser, at low points, provide 12mm [½"] brass valves with nipple and cap. Where fixtures are connected to risers at lowest level, they may be considered as drains. 6. Water Supply Contamination: Make water connections to plumbing fixtures, and other equipment using water, in manner which will eliminate possibility of spent water from fixtures being drawn back into water supply piping. 7. Provide building, storm and sanitary drains with cleanout; soil, waste and vent stacks, extended through roof and flashed; branch piping and fixture traps. Connect to fixtures, floor drains, roof drains, and other equipment indicated or specified as requiring soil, waste, drain or vent facilities. Connect vent stacks at base to soil or waste pipe, at least 914mm [36"] below lowest fixture branch. Unless otherwise indicated, install soil and waste branches at the ceiling below the floor where fixtures occur. Provide cleanouts and other accessories where required by local Code. February 2012 JM BEAN & CO. LTD 1130.10
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