OKALUX EVO
5Pages

INFOTEXT 1 OKALUX EVO Light Diffusing Insulating Glass The challenge for OKALUX EVO Light Diffusing Insulating Glass: to make daylight useful. With the use of a translucent light diffusing capillary slab with additional glass fibre tissues in between, OKALUX EVO achieves • optimum, uniform light transmittance into the room, irrespective of irradiation conditions • light transmission and total solar energy transmittance as required • very good colour rendering index • very good heat insulation • UV protection as required • sound insulation as required • vision protection and glare protection • attractive appearance in daylight and in artificial light • optical effect of depth from visible capillary structure • bird friendly glazing Outer pane, wit h soft lo w E or s un control coating #2 Inner pane Capillary Slab Intermediate pane Glass fibre tissue Physical properties Thermal insulation The capillaries reduce the heat transfer in the cavity between panes in terms of convection and heat radiation. OKALUX EVO therefore achieves a Ug value ≥ 1.3 W/(m2K) as a two pane make-up and 0.8 W/(m²K) with an additional gas filled cavity. The special geometry of the capillary material “KAPIPANE” means that the improved insulation due to the greater layer thickness does not cause any noteworthy infiltration in the light transmission. The Ug value for the various versions is dependent, among other things, on: • the thickness of the capillary slab (2-pane make-up) • the functional coating on surface #2 (3-pane make-up) • the filling gas in the cavity between panes (Air/Argon/Krypton) The Ug value of insulating glass in accordance with DIN EN 673 or DIN EN 674 always relates to vertical installation. If the insulating glass is at an angle, e.g. as in roof glazing, the Ug value increases, because the rising convection level in the cavity. Insulating glass with a standard value of Ug = 1.1 W/(m²K) has an actual value of approx. 1.7 W/(m²K) if used for horizontal roof glazing. The capillary slab in the cavity between panes prevents convection, which means that the Ug value of OKALUX EVO is nearly constant whatever the installation position.

INFOTEXT 1 Ug [W/(m²/K) following DIN EN 673] 2,2 2,0 1,8 1,6 1,4 1,2 1,0 Air 16 mm Argon 16 mm Krypton 10 mm OKALUX 24 mm OKALUX K OKALUX+ OKALUX EVO 40 mm Sound insulation Capillary slabs decouple the panes of the insulating glazing and provide improved sound insulation. Spectral properties The special light diffusing properties of the KAPIPANE insert provide an optimised, uniform distribution of light in the room, regardless of irradiation conditions. g value and light transmission depend on: • the design of the light-scattering inserts • the functional coating on surface #2 A low-e...

INFOTEXT 1 Technical values of standard types OKALUX EVO is available as a 2-pane and as a 3-pane make-up, with an additional cavity. The following specifications apply to the 2-pane make-up with a 6 mm outer pane and an 8 mm laminated glass inner pane (0.76 PVB foil). Table 1. Ug value Capillary slab (mm) Ug [W/(m²K)] Ug [Btu/(hr ft² °F)] Table 2. Spectral properties for 2 x 20 mm KAPIPANE The following data refers to glass thickness of 6/4/4 mm in a 3-pane make-up and takes into consideration a functional coating at page #2, an external cavity of 8 mm and 20 mm capillary insert in the...

INFOTEXT 1 Direct transmission relates to direct incidence of light, generally vertical (model situation for direct sunlight). Diffuse transmission applies to homogeneous, diffuse incidence of light from the outer hemisphere (model situation for an overcast sky). A low-e coating or a combined sun-control and low-e coating at position 2 changes the colour appearance when viewed from outside. The specified values may change as a result of technical developments. No guarantee is therefore given for their correctness. Make-up What makes OKALUX EVO light diffusing insulating glass so special is...

room geometry, window dimensions approximate degree of reflection of the surfaces forming the room boundaries The so-called daylight quotient (D) in accordance with DIN 5034, Part 3, is relevant for the evaluation of the ambient daylight. This gives the ratio between the horizontal luminous intensity indoors and out of doors, under a completely overcast sky. This value can be calculated for different glazing variants using the existing simulation tools. The customer can thus assess the light-directing effects of special products, in comparison with normal glazing as well. In addition to the...