System Performance | System Description | Case Study
U-Profile Glazings
Part of:  Diffusing Glazings  

Made by:  Pilkington   
Used by: Mahlum Architects  Debartolo And Associates  Steven Holl Architects 

U-profile glazing is a system consisting of a slab of aerogel granulates that transmits and diffuses daylight, while achieving outstanding thermal and acoustic insulating properties.

System Performance

U-profile glazing provides sun protection and transmits light uniformly into a room, independently of the light’s angle of incidence. This effectively minimizes glare, because bright areas of light will be spread so that a greater zone is lit. The granular structure of aerogel is permeable to light but also provides a highly thermal and acoustic insulating barrier. While this translucent layer creates privacy, it prevents the user from looking beyond the unit. This effect makes U-profile glazing a good system to implement in buildings where an outward view is not critical, such as gyms and museums, as well as for separating indoor areas like office cubicles. Double-shelled U-profiled glass with aerogel can be produced with 100% UV protection if necessary. For a more advanced lighting analysis and project specific results, we recommend using the Lightsolve program (under development).

Performance data for all systems in the same category. Comparison to systems in other categories, selected through the matrix filtering process.


System Description

The light-diffusing insulating panels are built up using double-soundproofing U-profile glass, separated by Nanogel, a high-insulating translucent silica aerogel granulate between 30mm to 60mm (1.2” to 2.4”) in thickness, contained in a polycarbonate case. This Nanogel is a noncrystalline solid with nonporous particles of 0.7mm to 3.5mm (0.03” to 0.14”) in diameter, held in an internal hydrostatic stress state. The panes can be up to 3.5m (11'6") long, and have similar maintenance requirements as other insulating glass systems. Due to its exceptional thermal insulation properties, the expected heating and cooling savings are between 30% and 70% compared to standard Insulating Glass Units. Thanks to its efficient control of daylight penetration, electric lighting savings are expected to reach up to 30%.

The information above reflects the specifications of Prolifit glass, manufactured by Pilkington. Another version of this product is made by Linit UK.

Pilkington, 'Pilkington - First in Glass', 2008

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