Fixed Frame

A fixed-frame window creates a view frame almost like a picture on the wall. Installed as single windows or in a spectacular window-wall, these hardwood windows, always built to custom specifications, can build a unique appearance from the outside and a very special environment on the inside because of the larger flat glass surfaces. The nature of fixed-frame windows means that they are often used in combination with other more-functional window types.

Photo © Chuck Choi

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) 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

KEY (mouse over #s to view details)

Detail: Head

DATA SHEET

Glazing

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.

Clear glass opening: Unit height minus 4 1/4”, unit width minus 3 1/2”.

Sizing

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

Width

Minimum: 8” or per glazing restrictions
Maximum: per glazing restrictions

Height

Minimum: 8” or per glazing restrictions
Maximum: per glazing restrictions

Frame Depths

Standard: 6¼”
Minimum*: 4”
Maximum: 10”

(*Contact factory for frame depths less than 6¼")

TEST RESULTS

Mechanical

Results

Static Air Infiltration:
ASTM E283 cfm/ft2 @ 1.57 psf

Allowed 0.30
Test Result 0.007

Water Infiltration:
ASTM E547-cyclic ASTM E331-static at 8 psf

Allowed 0.0
Test Result 0.0

Load Deflection:
ASTM E330 10 sec at +60 and -60 psf

Passed

Sash Torsion:
AAMA/WDMA/CSA 101 / I.S.2 / A440

N/A

Vertical Deflection:
AAMA/WDMA/CSA 101 / I.S.2 / A440

N/A

Forced Entry:
ASTM F588

N/A

Thermal Transmission

Results

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

1": 0.29
with Argon: 0.24

Total Unit:

1": 0.33
with Argon: 0.29

Hurricane Impact

Results

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.

Passed

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