Specifications:
General: The
Columbia Series 4700 aluminum window HS-R-20 shall company and bear the quality
certification label in accordance with the ANSI/AAMA Certification Program
101/85.
Material: Window
frames and sash members shall be of 6063-T5 extruded aluminum alloy within
commercial tolerances. Integral fins to have suitable break-off and nailing
grooves.
Finish: Windows
to be finished in natural aluminum extruded mill finish. Bronze or white
acrylic electrostatically applied enamel finish available if specified.
Construction:
All joints of frame and sash members shall be neatly fitted, securely
connected and permanently watertight. Frames shall have step point
construction for maximum rigidity. Both frames and sash members shall use
an extruded screw boss that is an integral part of the extruded section.
The operating sash shall interlock at both meeting rail and sill. The
operating sash shall be easily removable from inside and not removable when
in locked position.
Weatherstripping:
Weatherstripping shall be silicon treated, fungus, mildew, and moth
resistant high performance poly bond fin seal around the complete perimeter
of the operating sash with a permanent poly fin in the middle of the poly
pile to minimize air infiltration. Vertical stiles are weatherstripped. The
poly pile weatherstripping shall use a poly bond backing to insure against
shrinkage.
Hardware: Window
shall be factory equipped with an automatic lock made of non-corrosive
material.
Screens: Screens
shall be available on all windows and shall be installed or removed from
inside. Screen frames shall be aluminum sections securely joined at the
corners. Screen cloth shall be 18x16 mesh fiberglass.
Installation:
All aluminum windows shall be set in accordance with the
manufacturer’s recommendations without springing, forcing, or distorting.
Head and sill shall be aligned parallel and square with jambs. A
non-hardening sealant compatible with aluminum shall be provided by the
window erector, and applied in sufficient quantity to provide a watertight
seal between window and surrounding construction. Manufacturer assumes no
liability for damage by the trades or final cleaning of aluminum.
Glazing: All
windows shall be glazed with clear single strength or 1/8" double strength
glass set in a butyal tape and secured with vinyl glazing bead (inside
glaze). Also available bronze tinted glass and low E glass at an extra cost.
