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John Spoor Broome Library
OKALUX™John Spoor Broome Library, Camarillo CA, Architecture: Gruen & Associates

OKALUX™Light diffusing glass

At a glance

Endless possibilities between two pieces of glass

The challenge for OKALUX™ light diffusing insulating glass: to make daylight useful. With a translucent capillary slab covered with glass fiber tissues in the cavity. OKALUX™ light diffusing glass is installed like normal insulating glass. To cover the capillary structure, glass fiber tissue is fitted in the cavity on both sides.
  • Shadowless light with true color rendition.
  • Precise diffusion prevents glare while preserving a fine quality of light
  • Stronger performance characteristics than ordinary insulated glass
  • Panels laminated for safety glazing
  • Flexibility in design: A variety of sizes and shapes accommodate ridges, eaves, valleys, joints, and other structural challenges

Key facts

  • Precise light diffusing glass prevents glare while preserving a fine quality of light
  • Stronger performance characteristics than ordinary insulated glass
  • Optimized for inclined roofs and overhead glazings; easy, unobstructed drainage
  • Panels laminated for safety glazing
  • Resistance to thermal stresses caused by climate heating systems and shading
  • Flexibility in design: A variety of sizes and shapes accommodate ridges, eaves, valleys, joints, and other structural challenges

Technical data

Capillary slab (mm)
8
12
16
Ug (W/m2K)
3.4
2.5
2.2
U (BTU/hr/ft2/°F)
0.59
0.44
0.39
Rw (dB)
38
40
42

Heat and sound insulation

The capillaries prevent heat transmission in the cavity, not only with respect to convection, but also in terms of heat radiation. The particular geometry of “OKAPANE” capillary material means that an improvement in thermal insulation through greater layer thicknesses does not lead to any appreciable reduction in light transmission. In the new version (product version “OKALUX-P”), U-values of up to 0.9 W/m2/K (0.16 BTU/hr/ft2/°F) can be achieved. Further synergies become apparent in the field of sound insulation. Capillary slabs uncouple the panes of the insulating glass and absorb the sound. The following information applies for build-ups with a 6 mm (~ 1/4") outer pane and a laminated glass inner pane of 8 mm (~5/16").

Deflection of glass

The glass panes of hermetically sealed units will tend to deflect inward or outward according to temperature changes due to varying air pressure within the units. To minimize this effect, if possible the outer pane should be stiffer and thicker than the inboard plane.

Dimensions

  • Minimum size 50 cm x 50 cm (~20" x 20")
  • Maximum size 123 cm x 400 cm (~48" x 157")

Contact

OKALUX™ offers a broad range of design possibilities. We offer our help and expertise to search for your unique OKALUX™ application.

Please contact us,

SCHOTT North America, Inc.
Architecture

555 Taxter Road
Elmsford, NY 10523
USA

 +1 (914)831-2240
 +1 (914)831-2346

Endless possibilities between two pieces of glass

The challenge for OKALUX™ light diffusing insulating glass: to make daylight useful. With a translucent capillary slab covered with glass fiber tissues in the cavity. OKALUX™ light diffusing glass is installed like normal insulating glass. To cover the capillary structure, glass fiber tissue is fitted in the cavity on both sides.
  • Shadowless light with true color rendition.
  • Precise diffusion prevents glare while preserving a fine quality of light
  • Stronger performance characteristics than ordinary insulated glass
  • Panels laminated for safety glazing
  • Flexibility in design: A variety of sizes and shapes accommodate ridges, eaves, valleys, joints, and other structural challenges
OKALUX™ offers a large variety of both interior and exterior applications. The challenge for OKALUX™ light diffusing insulating glass is to make daylight useful. Decorative and functional, interior and exterior applications are possible with OKALUX™.
  • Precise light diffusing glass prevents glare while preserving a fine quality of light
  • Stronger performance characteristics than ordinary insulated glass
  • Optimized for inclined roofs and overhead glazings; easy, unobstructed drainage
  • Panels laminated for safety glazing
  • Resistance to thermal stresses caused by climate heating systems and shading
  • Flexibility in design: A variety of sizes and shapes accommodate ridges, eaves, valleys, joints, and other structural challenges
Capillary slab (mm)
8
12
16
Ug (W/m2K)
3.4
2.5
2.2
U (BTU/hr/ft2/°F)
0.59
0.44
0.39
Rw (dB)
38
40
42

Heat and sound insulation

The capillaries prevent heat transmission in the cavity, not only with respect to convection, but also in terms of heat radiation. The particular geometry of “OKAPANE” capillary material means that an improvement in thermal insulation through greater layer thicknesses does not lead to any appreciable reduction in light transmission. In the new version (product version “OKALUX-P”), U-values of up to 0.9 W/m2/K (0.16 BTU/hr/ft2/°F) can be achieved. Further synergies become apparent in the field of sound insulation. Capillary slabs uncouple the panes of the insulating glass and absorb the sound. The following information applies for build-ups with a 6 mm (~ 1/4") outer pane and a laminated glass inner pane of 8 mm (~5/16").

Deflection of glass

The glass panes of hermetically sealed units will tend to deflect inward or outward according to temperature changes due to varying air pressure within the units. To minimize this effect, if possible the outer pane should be stiffer and thicker than the inboard plane.

Dimensions

  • Minimum size 50 cm x 50 cm (~20" x 20")
  • Maximum size 123 cm x 400 cm (~48" x 157")
OKALUX™ offers a broad range of design possibilities. We offer our help and expertise to search for your unique OKALUX™ application.

Please contact us,

SCHOTT North America, Inc.
Architecture

555 Taxter Road
Elmsford, NY 10523
USA

 +1 (914)831-2240
 +1 (914)831-2346