Insulated, translucent, light-diffusing, wall and roof systems.


'Kalwall is the most highly insulating, diffuse-light-transmitting system available. Transmitting useable daylight with insulating values from 0.74 W/m2K and 0.28W/m2K ('centre pane' ie excluding frames), conductive winter heat loss is kept to a minimum.
Additionally, compared to other light transmitting products Kalwall's low shading coefficients significantly reduces solar heat gain, with subsequent reductions in the buildings' heating and cooling costs. 
The primary element is a structural composite sandwich panel formed by permanently bonding, under heat and pressure, specially formulated, fiberglass-reinforced translucent faces to a grid core constructed of interlocked, structural aluminum/composite, thermally broken "I" beams. Panels can only be flat. Every job is custom pre-engineered from standard components to assure a perfect fit.

u-values: 1.25 W/m2K to 0.28W/m2K (overall panel excluding frames) depending on insulating core materials.'

  • Kalwall (image 1)
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Environmental metrics

Fibreglass faces, fibreglass/aerogel core, aluminium frame.

Life expectancy
25+ years (verified by ETA)

EPD to ISO 14025

Recycled content

panels are reusable; aluminium is recyclable; fibreglass is recyclable (though opportunities are limited)

3rd party product endorsement
GreenSpec (USA)

Environmental labelling
Gifford Sustainability Appraisal Process (GSAP) Energy Star (USA); Lumira insulation alone is MBDC 'Cradle to Cradle' rated (USA)

Country of manufacture

Manufacture details

Kalwall Corporation c/o Structura Ltd.

Structura UK Ltd.. 6 The Glenmore Centre, Moat Way, Sevington, Ashford, Kent, TN24 0TL

01233 501504

01233 503372

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