Operating with a single handle, these custom windows open inwardly like a hopper window and open wide in the traditional in-swing style. The concealed hardware offers secure locking and ease of use.
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)
Multi-latchpoint fully-concealed locking hardware controlled by single lever handle control. Horizontal and vertical perimeter locking points ensure weather-tight performance and security. In the turn mode, an adjustable friction stay holds window in any open position from 0° to 90°. In the tilt mode, the sash projects in at head approximately 10° to provide controlled ventilation without compromising security. Egress: Available as quick-release pin at sash connection.
Operating hardware accepts any lever handle with 43mm attachment spacing and 7mm sq. spindle. A wide variety of styles and finishes are available from various manufacturers.
Custodial locks, sash restrictors, removable operating handle.
All glazing is per project specifications. Duratherm can accommodate most configurations and make-ups from 1/8" single glazed to a maximum of 1 3/4" security glass.
Double continuous extruded silicone flap gasket set in rebate around the perimeter of the sash. Engaging the multilatchpoint espagnolettes 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.
To ensure smooth and troublefree operation over time:
At maximum width of: 62", limit height to: 60"
At maximum height of: 96", limit width to: 36"
Maximum area for a single sash: 25 sq ft
20" clear width
24" clear height
5.7 sq ft clear opening
Minimum unit width: 28"
Minimum unit height: 30"
To meet egress requirements:
At minimum unit width of: 28", height must be at least: 48"
At minimum unit height of: 30", width must be at least: 40"
Standard: 6 1/4”
Minimum*: 4 3/4”
(*Contact factory for frame depths less than 6¼")
Static Air Infiltration:
|Allowed 0.10 Test Result 0.005|
|Allowed 0.0 Test Result 0.0|
Center of Glass:
|1": 0.29 with Argon: 0.24|
|1": 0.34 with Argon: 0.30|
Large Missile Impact and Cyclical Air Pressure:
- ASTM E1996-05, ASTM E1886-05
- Tested at 42 psf
- Wind Zone 3, not including Dade County, FL
- Missile Level D
Note: Contact factory for size limitations
and detail modification required for
hurricane certified units.