Specifications

RDNO ATHLETIC PARK
AMENITIES BUILDINGS
WE File No.029042.00
May 30, 2014
12 | P a g e
25.5 Air terminals installed in grid ceilings on flexible duct shall have at least two galvanized
steel seismic restraint wires attached to the building structure or to ceiling hanger wires.
Attach security bridles at opposite corners of each air terminal and in such a manner that
the air terminal cannot fall.
25.6 Air terminals installed in grid ceilings on rigid duct shall have at least two screws securing
the air terminal to the duct.
25.7 Air terminals installed in grid ceilings not attached to ducts shall have at least two screws
securing the air terminal to the ceiling support or at least two galvanized steel seismic
restraint wires attached to the building structure or to ceiling hanger wires.
25.8 Provide galvanized steel seismic restraint wires for radiant ceiling panels attached to either
building structure or to ceiling hanger wires.
25.9 Roof top unit systems shall have roof curb/support bolting restraint systems designed by a
BC Professional engineer, regularly employed in the design of restraint systems. Submit
"sealed" shop drawings for review by the Consultant.
25.10 Slack Cable Systems
.1 Slack cable restraints as supplied by Vibra-Sonic Control.
.2 Restraint systems as detailed in SMACNA "Guidelines for Seismic Restraints of
Mechanical Systems and Plumbing Piping Systems" as reviewed by the "Office of
the State Architect, Structural Safety Section" for California. If lesser restraint than
recommended by SMACNA is proposed to meet local NBCC seismic requirements,
provide shop drawings of details certified by a B.C. registered structural consultant.
26 DUCTWORK AND ACCESSORIES
26.1 Galvanized steel, lock forming quality. All ductwork to be constructed, braced, connected
and jointed according to ASHRAE and SMACNA.
26.2 Provide stainless steel ductwork where noted on the drawings.
26.3 Snaplock seams and crimp joints are not acceptable.
26.4 All duct joints, indoor and outdoor, shall be completely sealed with an approved sealant.
Sealants shall meet acceptable smoke and flame spread ratings.
26.5 Provide gauge of metal and bracing as required for 500 Pa [2" w.c.] static pressure or
greater.
26.6 Install duct necks before grilles, registers and diffusers and cushion heads after diffuser
take-offs. Provide maximum of 24" of flexible connection. Do not use flex to change
directions.
26.7 Where flexible ductwork is used, provide factory fabricated insulated flex.
.1 Flexible vinyl coated steel helix bonded to inner duct liner. Fibrous glass thermal
insulation.
.2 Outer jacket of metalized fire-resistant vapour barrier.
.3 Suitable for up to 500 Pa [2" w.g.] positive static pressure and/or 250 Pa [1" w.g.]
negative static pressure.
.4 UL or ULC labeled, Class 1, duct connector.
.5 Connect to ductwork using two wraps of duct tape and stainless steel worm drive
clamps or Panduit adjustable diameter clamps or Thermaflex duct strap.
26.8 Provide backdraft dampers where indicated on the drawings.
.1 Minimum Requirements:
.1 1.4 mm thick [16 ga] galvanized steel or aluminum channel frame.
.2 1.2 mm thick [15 ga] aluminum blades, complete with stiffening ribs/bends.
.3 Full blade length shafts; brass, ball or nylon bearings.