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metal mesh · 4 finishes · solar control
OKATECH

Metal mesh, architecturally integrated.

Mandarin, Kiwi, Aluminum, or Copper mesh sealed inside the IGU cavity, delivering directional solar control, partial vision, and the architectural texture of woven or expanded metal, with no exterior maintenance ever required. Available up to 78 by 157 inches.

NIEDERLÄNDISCHE BOTSCHAFT · BERLIN, GERMANY · OKATECH
02/ 09

Metal mesh. Suspended in glass. Maintenance-free.

OKATECH seals expanded or woven metal mesh inside the hermetically sealed cavity of an insulating glass unit. The mesh never contacts air, weather, or UV directly. Pattern density and finish are selected to redirect direct solar radiation while transmitting diffuse daylight, a passive shading system with the architectural character of textile-scale metalwork.

The mesh

Four finishes. One sealed system.

Mandarin (woven brass), Kiwi (woven steel), Aluminum and Copper (expanded metal) are each sealed in the same insulating glass construction with the same framing envelope and thermal performance. Finish choice is an architectural decision about tone, transparency, and how the mesh reads against the surrounding facade material.

The solar control

Direction-selective shading.

Mesh density and angle block direct solar radiation as the sun moves across the facade. SHGC ranges from 9 to 31 percent depending on sun angle and panel orientation. No motorized components. No maintenance cycle. The mesh works passively for the life of the building.

The vision

Partial through-vision. Privacy from outside.

From the exterior, OKATECH reads as a metallic textile. From the interior, diffuse daylight enters and silhouettes of the exterior world remain faintly visible. Privacy is asymmetric: much harder to see in from outside than out from inside, a quality useful in embassy, civic, and institutional applications.

SHGC
.09 - .31 (sun angle)
U-value
.26 air · .21 argon · .18 krypton
IGU buildup
~34 mm overall
Max panel
78" × 157" (Kiwi)
Bird-friendly
Yes · mesh visibility meets standards
Pricing position
From approx. $100/sf
Aalen Aussegnungshalle Waldfriedhof, OKATECH Mandarin detail, woven brass mesh inside IGU, warm filtered daylight
OKATECH Mandarin woven brass mesh swatch detail sealed inside hermetic IGU cavity
OKATECH Mandarin · Woven brass mesh sealed inside hermetic IGU cavity · Not to scale
Inside the IGU

Hermetically sealed. Maintenance-free.

The mesh is precision-set and fitted inside the sealed IGU cavity during fabrication. It never contacts outdoor air, humidity, or UV radiation directly. No painting, coating, or replacement is required for the life of the unit, unlike any exterior metal cladding system. The factory-sealed cavity also functions as the argon or krypton fill chamber for thermal performance.

The interior experience

Daylight, filtered through metal.

Daylight filtering through OKATECH takes on the warm tone of the brass mesh in Mandarin, the cooler tone of steel in Kiwi, or the metallic shimmer of expanded aluminum and copper. The pattern of the mesh drifts across interior surfaces through the day. At Aussegnungshalle Waldfriedhof in Aalen, mourners experience daylight that is bright but never harsh, softened and patterned by the mesh inside the glass.

Aussegnungshalle Waldfriedhof nave interior, Aalen, Germany, OKATECH Mandarin woven brass mesh in side-aisle glazing, filtered daylight across chapel interior
Aussegnungshalle Waldfriedhof · Aalen, Germany · OKATECH Mandarin · Daylight quality, interior
03/ 09

Four finishes. One sealed system.

Mandarin, Kiwi, Aluminum, and Copper are each enclosed in the same insulating glass construction with the same framing envelope and thermal performance. Finish choice is an architectural decision about tone, transparency, and how the mesh reads against the surrounding facade material.

Additional finishes available by inquiry: Lamelle, Sambesi 450, Omega 1520, Anodized aluminum, Duraflon Copper. SHGC and U-values above are reference figures from OKALUX published data. Project-specific values vary with mesh density and IGU build-up.

04/ 09

Specifications per finish.

All four OKATECH finishes share the same IGU construction, framing envelope, and thermal performance range. Finish selection is an architectural decision about tone, texture, and transparency, not a performance tradeoff.

OKATECH Mandarin specimen, woven brass mesh IGU panel, warm golden tone
MA

OKATECH Mandarin

Mesh finish
Mandarin · woven brass · Germany
Pattern
Woven brass mesh, fine cord weave
Max panel
61" × 137"
SHGC
.09 - .31 (sun angle)
U-value
.26 air
Pricing
$140 / sf
OKATECH Kiwi specimen, woven steel mesh IGU panel, cool silver tone
KI

OKATECH Kiwi

Mesh finish
Kiwi · woven steel · Germany
Pattern
Woven steel mesh, open weave
Max panel
78" × 157" (largest in range)
SHGC
.09 - .31 (sun angle)
U-value
.26 air
Pricing
$145 / sf
OKATECH Aluminum specimen, expanded aluminum mesh IGU panel, bright silver finish
AL

OKATECH Aluminum

Mesh finish
Aluminum · expanded metal · Germany
Pattern
Expanded aluminum, diamond pattern
Max panel
48" × 137"
SHGC
.09 - .31 (sun angle)
U-value
.26 air
Pricing
$100 / sf
OKATECH Copper specimen, expanded copper mesh IGU panel, warm copper tone
CU

OKATECH Copper

Mesh finish
Copper · expanded metal · Germany
Pattern
Expanded copper, diamond pattern
Max panel
48" × 137"
SHGC
.09 - .31 (sun angle)
U-value
.26 air
Pricing
$130 / sf
05/ 09

Where metal mesh belongs in the building envelope.

OKATECH is specified where solar control needs to be visible: an embassy facade, a civic envelope, a contemplative interior, a cultural building where the mesh itself is the architectural gesture. Maintenance-free for the building life.

Niederländische Botschaft Berlin facade, OKATECH Mandarin woven brass mesh on primary curtainwall elevation, OMA
Berlin, Germany · OKATECH
01

Civic and institutional

Embassy and civic buildings benefit from OKATECH's combination of solar control, partial through-vision, and the visual presence of metal as a material. The mesh humanizes large-area glazing while the sealed cavity removes any maintenance commitment. Niederländische Botschaft, OMA, Berlin.

OKATECH Mandarin OKATECH Kiwi
Aussegnungshalle Waldfriedhof Aalen, OKATECH Mandarin in entry door and side-aisle glazing, filtered daylight interior
Aalen, Germany · OKATECH
02

Sacred and contemplative spaces

Funerary, sacred, and meditation spaces specified with OKATECH Mandarin achieve filtered daylight without exterior shading devices or operable components. Aussegnungshalle Waldfriedhof in Aalen uses Mandarin in the side-aisle glazing to soften daylight across the chapel interior.

OKATECH Mandarin
Niederländische Botschaft Berlin, foliage-side context view of OKATECH facade against street trees, Berlin diplomatic quarter
Berlin, Germany · OKATECH
03

Cultural and institutional facades

Cultural buildings, museums, and mid-rise institutional facades use OKATECH Kiwi or Mandarin where the mesh is intended to read as the building's primary material. Direct solar control without curtainwall framing complexity.

OKATECH Kiwi OKATECH Mandarin
06/ 09

Where OKATECH is already working.

Verified OKATECH installations across civic, cultural, and contemplative typologies. Imagery via OKALUX product library.

Niederländische Botschaft Berlin, worm's-eye facade detail showing OKATECH mesh panels and vertical mullions against blue sky
OKATECH · Civic
OKATECH Civic

Niederländische Botschaft, facade detail

Worm's-eye view of the embassy facade showing the OKATECH mesh panels and framing system in close detail. The vertical mesh reads as a metallic textile at building scale.

Niederländische Botschaft, OMA  ·  Berlin, Germany  ·  OKATECH
Aussegnungshalle Waldfriedhof nave interior, Aalen, OKATECH Mandarin in side-aisle glazing, softened daylight across chapel
OKATECH · Sacred · Contemplative
OKATECH Sacred · Contemplative

Aussegnungshalle Waldfriedhof, interior

Cemetery chapel in Aalen with OKATECH Mandarin in the side-aisle and entry-door glazing. The brass mesh softens daylight across the chapel without darkening the interior.

Aussegnungshalle Waldfriedhof  ·  Aalen, Germany  ·  OKATECH Mandarin
Aussegnungshalle Waldfriedhof exterior, Aalen, OKATECH Mandarin in lower fenestration and entry doors, forested cemetery site
OKATECH · Sacred
OKATECH Sacred

Aussegnungshalle Waldfriedhof, exterior

Forested cemetery site, with OKATECH Mandarin in the lower fenestration and entry doors. Aalen, Germany.

Aussegnungshalle Waldfriedhof  ·  Aalen, Germany  ·  OKATECH Mandarin
07/ 09

Engineered for performance.

01
SHGC .09 to .31
OKATECH's SHGC varies with sun angle and panel orientation rather than a fixed value. This is inherent to the directional selectivity of the mesh weave or expanded pattern. At steep summer sun angles (above 35 degrees), the mesh blocks direct solar radiation and SHGC approaches .09. At shallow winter angles, diffuse daylight passes through and SHGC approaches .31.
02
U-value .26 · .21 · .18
Reference U-values of .26 (air fill), .21 (argon), and .18 (krypton). The metal mesh inside the cavity does not significantly affect thermal performance. Argon is the most common specification for US climate zones. Krypton available for high-performance enclosure targets. Consult R. Suare for project-specific build-up recommendations.
03
Max 78″ × 157″
Maximum unit size of 78 by 157 inches in Kiwi, the largest in the OKATECH range. Mandarin maxes at 61 by 137 inches, Aluminum and Copper at 48 by 137 inches. Confirm with project framing system dimensions and R. Suare before specifying.
04
Bird-friendly visibility
All four OKATECH finishes provide visible mesh patterns that meet bird-friendly visibility standards from the exterior, addressing collision-strike risk inherent to large-area glazing on civic and institutional facades. No additional fritting or films required.
Construction

Metal inside glass. Sealed for life.

OKATECH is optimized for vertical facade applications. For overhead and non-standard orientation inquiries, contact R. Suare. SHGC and U-values above are reference figures from OKALUX published data. Project-specific values vary with mesh density and IGU build-up.

Framing compatibility

Standard curtainwall depths.

OKATECH fits standard curtainwall and storefront framing systems. The metal mesh adds no significant frame depth beyond a conventional double-pane unit. Consult R. Suare for project-specific framing coordination and maximum span confirmation.

OKATECH is optimized for vertical facade applications. For overhead and non-standard orientation inquiries, contact R. Suare. SHGC and U-values above are reference figures from OKALUX published data. Project-specific values vary with mesh density and IGU build-up.

08/ 09

OKATECH documentation.

Brochure, technical data, and tender specification for OKATECH metal mesh, plus the OKATECH P shared brochure and technical data.

PDF
OKATECH brochure
2.8 MB · metal mesh glazing
Email-gated download
PDF
OKATECH technical data
287 KB · Ug, SHGC, max dimensions
Email-gated download
PDF
OKATECH tender specification
99 KB · architect spec text
Email-gated download
PDF
OKASOLAR P + OKATECH P · brochure
shared brochure for the P line
Email-gated download
PDF
OKATECH P · technical data
1.7 MB · direction-selective privacy
Email-gated download
TALK
Lunch & learn · capillary daylighting 101
60 min · presentation + Q&A
Email-request schedule
09/ 09

Specifying OKATECH for your project?

We'll send samples, finish-specific spec sheets, and a project-matched SHGC and Ug recommendation within two business days. For design-phase support, schedule a lunch and learn or send your solar study for review.

Goes directly to R. Suare. Replies within 2 business days. No marketing funnel, no auto-responder. If your inquiry needs the manufacturer, we route it to OKATECH Germany and loop you in.

Your contact

Regional representative
R. Suare
RS
r.suare@3sgconsulting.com
Every project inquiry comes to this inbox: samples, presentations, spec questions, lunch and learns. You'll get a human reply within two business days.
Service area
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