Scope: Furnish and
install all 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 820 vinyl window.
Material: All
frame and sash members shall be manufactured of extruded,
high-impact-resistant, UV stabilized, rigid virgin polyvinyl chloride (PVC)
with nominal .065" masterframe and sash members. Frame members shall be of
multi-chambered design. All frame and sash shall contain a weepage system
for efficient water drainage to the exterior. All exposed weatherstripping,
hardware and fasteners shall be stainless steel, aluminum, nylon or other
suitable material compatible with rigid PVC.
Construction:
All single-hung windows shall employ an internal weep system. Single-hung masterframes shall be miter-cut and fully welded at all corners. All sash
members shall be miter-cut and fushion-welded. Single-hung
sash units shall be the tilt-type. Both shall incorporate fin-type weatherstripping inserted
into designed grooves and have continuous contact with frame members when in
a closed position.
Glazing: ¾"
insulating glass shall be double-pane and hermetically sealed meeting ASTM
C1036 and ASTM E774 level C or higher standards. Non-operating lites shall
be inside-bead glazed and all operating sash shall be outside-bead glazed.
Hardware:
Operating sash shall have an interlocking rail to provide positive
engagement when fully closed. A meeting rail cam lock and keeper will be
provided to lock the window in a closed position. Single-hung operating sash shall be equipped with counterbalancing
mechanisms to hold the sash stationary position meeting AAMA 902.2. Balances
shall be easily replaceable in the field with the use of hand-tools.
Finish: All
window members shall have an integral white color throughout the profile.
Insect screens:
All operating vents shall be designed to receive screens. Screen frames to
be aluminum with baked enamel color to be compatible with PVC frames.
14"x18" fiberglass cloth meeting ASTM D3656 shall be secured to the frame
using a vinyl spline. Screens shall be retained using spring-loaded plungers
and shall be removed from inside the building. Insect screens are not
intended to provide security or for the retention of objects or persons.
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.
