Scope: Furnish and
install all vinyl windows of the type and size shown on the drawings and called
for in the specification including all necessary hardware, anchors, and trim
where noted.
General: Windows shall
be fiberlux series 770 vinyl window. Double hung vinyl window shall meet or exceed ASTM D4099
grade 30.
Material: All frame and
sash members shall be manufactured of extruded, high-impact-resistant, UV
stabilized, rigid virgin polyvinyl chloride (PVC) with nominal .070"
masterframe and .065" sash members. Frame members shall be of
multi-chambered design. Sill shall contain an internal weepage system for
efficient water drainage to the exterior. All exposed weather-stripping,
hardware and fasteners shall be stainless steel, aluminum, nylon or other
suitable material compatible with rigid PVC. Frame
members shall have pre-punched integral 1 ¼" nailer fins.
Construction:
All masterframe and sash members shall be miter-cut and fusion-welded.
Double-hung sash units shall be the tilt-type. The window shall incorporate
fin-type weatherstripping inserted into designed grooves and have
continuous contact with frame members when in a closed position.
Glazing: Nominal
7/8" insulating glass shall be double-pane and hermetically sealed meeting
ASTM C1036 and ASTM E774 level C or higher standards. The sash shall be
inside-bead glazed with foam tape on the exterior glazing leg.
Hardware: The
operating sash shall have an interlocking rail to provide engagement with
each other when fully closed. A meeting rail cam lock and keeper will be
provided to lock the window in a closed position. Double hung operating sash
shall be equipped with counterbalancing mechanisms to hold the sash
stationary in any open position meeting AAMA 902.2. Balances shall be
equipped with brass wheels and stainless steel axles contained in a nylon
housing. They shall be field-adjustable and easily replaced with use of
normal hand tools.
Finish: All
window members shall have an integral white color throughout the profile.
(An option of Almond color is also available)
Insect screens:
All operating vents shall be designed to receive screens. Screen frames to
be extruded aluminum with baked enamel color to be compatible with PVC
frames. 18"x16" fiberglass cloth meeting ASTM D3656 shall be secured to the
frame using a vinyl spline. Screens shall be retained by the integral
beveled tubular PVC screen track. Insect screens are not for the purpose of
providing security or providing for retention of objects or persons from the
interior.
Erection and Caulking (by
others): All units shall be adequately and securely fastened
plumb, level and square without distortion, twisting, bowing or springing of
frame members. All frame members shall be properly supported, shimmed, and
leveled along their entire length. All units shall be properly caulked using
a good grade of non-hardening caulking that is compatible with PVC and the
surface it is mounted on to provide a thoroughly water-tight seal meeting
AAMA 808.3. The masterframe is to be installed square with the operating
sash. The sash should be operated and the masterframe should be given any
necessary final adjustment to insure proper operation and weather-tightness.
