These large-scale windows offer an ease of operation covering a wide opening area. Dramatic, customized Lift/Roll windows can bring a room to life with light and an outdoor feeling.
Wood Species & Finishes
Duratherm sources all its materials by project, only from providers we know and trust. Many of our woods come from Forest Stewardship Council® (FSC- C108949) certified sources. We obtain others from sustainably-harvested plantations. Fourteen domestic and exotic wood species offer a wide range of colors, grains, and textures.
Please contact us for information about finishing options (including paint, Sikkens, clear laquer, stain, bleach stain, oil, etc.) and to discuss the use of a species not on our standard menu. We consider availability, durability, machining, and gluing characteristics to determine the feasibility of your choices.
EXTERIOR WOOD SPECIES
INTERIOR WOOD SPECIES
We offer dry or wet weeped
Specially developed extruded silicon gasket sets the glass by compression. Our proprietary system is long-lived, has low maintenance, and stays waterproof.
Our special silicon wet glazing compound bond to the glass for long-lived sealing. Plus our continuous extruded silicon weatherstrip runs around the frame perimeter, and the seal is not compromised by seasonal expansion and contractions of the sash and frame.
DRY GLAZED WINDOW
WET GLAZED WINDOW
We use only the highest quality hardware. Our standard hardware finishes for most window operators are lacquered Red Bronze (US 20) and White Bronze (US 25). Other finishes are available on request.
HANDLES & FINISHES
KEY (mouse over #s to view details)
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.
Standard handles are solid brass.
Finishes: Satin Nickel (US15), Polished Brass (US3), Satin Anodized Aluminum (US28).
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.
Minimum: 36” for OX configuration.
Maximum: Maximum varies per configuration.
For OX configuation, equal-sized sashes.
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"
Standard: 6 1/4”
Minimum*: 6 1/4”
Static Air Infiltration:
|Allowed 0.30 Test Result 0.05|
|Allowed 0.0 Test Result 0.0|
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|
|1": 0.33 with Argon: 0.29|