Lift Roll Windows

Operating Assembly
Window sashes ride on carriages consisting of two sets of twin rollers mortised into the bottom of each moving sash. The sash is raised onto its carriage by rotating the operating lever handle 180°. Lifting gear connected to a tie rod transmits motion to the carriage, lifting sash. Based on G-U 933 or FFI Lift/Roll operating hardware.

• Internal carriage assembly (drive bars, wheel hub, shafts, rivets), lock kit, link rods, and connectors are zinc
• chromate coated steel or 304 stainless steel.
• Lock face and edge stile cover are clear anodized (EV-1) or dark bronze anodized (EV-5) aluminum.
• External guides and tracks are clear anodized (EV-1) or dark bronze anodized (EV-5) aluminum.

Egress: Properly-sized units meet egress requirements using standard hardware configuration.

Lever Handle
Standard handles are solid brass.

Finishes: Satin Nickel (US15), Polished Brass (US3), Satin Anodized Aluminum (US28).

Optional Hardware
Keyed locks.

3/4" x 1/4" tubular extruded frames set in wood frame surround. Extruded frames in anodized bronze, mill finish aluminum or custom color painted aluminum. Mesh of 18 x 16 screen cloth held with vinyl spline, available in charcoal finished aluminum, mill finish aluminum, stainless steel or bright brass. Maximum width of screen mesh is 72".

X = Operable sash, O = Fixed sash, P = Pocket OX , OXXO , OXO , XP , PXXP

All glazing is per project specifications. Duratherm can accommodate most configurations and make-ups from 1/8" single glazed to a maximum of 1" security glass. Refer to the Glass and Glazing Guide in the Introduction section of this binder. Clear glass opening: Unit height minus 10 1/4". For clear glass width, contact factory.

Double continuous extruded silicone flap gasket set in rebate around the perimeter of the sash. Engaging the lever handle compresses the weather-strip to ensure a tight seal.

The minimums and maximums shown are intended as guidelines. For applications that exceed these ranges, please contact the factory for assistance.

Width
Minimum: 36” for OX configuration.
Maximum: Maximum varies per configuration.

Height
Minimum: 36”
Maximum: 66"

Egress
For OX configuration, equal-sized sashes.
Based on:
20" clear width
24" clear height
5.7 sq ft clear opening
Minimum unit width: 50"
Minimum unit height: 36"

To meet egress requirements:
At minimum unit width of: 50", height must be at least: 56"
At minimum unit height of: 36", width must be at least: 61"

Frame Depths
Standard: 6 1/4”
Minimum*: 6 1/4”
Maximum: 10”

Allowed 0.30 Test Result 0.05

Allowed 0.0 Test Result 0.0

Passed

N/A

N/A

Passed

Center of Glass:
ASTM C-236 U-value using Viracon VE1-2M Low E glass and Lawrence Berkeley Laboratories Winow 5.2 analysis program.

1": 0.29 with Argon: 0.24

Total Unit:

1": 0.33 with Argon: 0.29