KAPILUX Capillary System
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INFOTEXT KAPILUX Capillary System KAPILUX is an insulating glass with an integrated capillary slab. The type designation "–T" refers to a capillary slab made of transparent material, "–W" refers to white-tinted material )other colours on request). Type “WS” is a white-tinted material with an inclined capillary axis. The capillaries do not only reduce heat losses resulting¸ with their forward-directed light diffusion, they also improve the in-depth illumination of the room. This effect is particularly valuable on overcast days and in rooms with side illumination. KAPILUX offers • 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 • sound insulation as required • UV protection as required • Attractive appearance in daylight and in artificial light • Partial troughvision, effect of depth • bird friendly glazing Physical properties Thermal insulation The capillaries reduce the heat transfer in the cavity between panes in terms of convection and heat radiation. The thicker the KAPIPANE insert, therefore, the better the Ug value. With the triple pane make it is possible to achieve Ug values ≥ 0.8 W/(m2K).

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+ is nearly constant whatever the installation position. Air 16 mm Argon 16 mm Krypton 10 mm...

INFOTEXT In certain cases it makes sense to have the capillary axis at an angle to the glass. This can prevent radiation coming in at a right angle from entering the room through the capillaries. KAPILUX WS is the appropriate product for such cases. UV protection Very low UV transmission possible on request. Technical values of standard types The following details apply to a two-pane glass make up with a 6 mm outer pane, with a functional coating on face #2, a 4 mm middle pane and a 4 mm inner pane. Table 1. Spectral properties 3-pane make-up TSET TSET direct diffuse % % 42 29 26 TSET TSET...

INFOTEXT The following details apply to a two-pane glass make up with a 6 mm outer pane and a 4 mm inner pane. Table 2. Spectral properties 2-pane make-up Legend and related values: unit standard Ug W/(m2K) DIN EN 673 DIN EN 674 TSET % DIN EN 410 % DIN EN 410 Tv Rw FC SC Ug-value [W/(m²K)] / Ug [Btu/(hr ft² °F)] Ug-value [W/(m²K)] / Ug [Btu/(hr ft² °F)] technical term Thermal transmittance Total solar energy transmittance or solar heat gain coefficient Light transmission (direct/hemispheric resp. diffuse/ hemispheric) Sound reduction coefficient Reduction factor of a solar control system,...

INFOTEXT Make-up outer pane inner pane What makes KAPILUX light diffusing insulating glass so special is the capillary slab inserted in the cavity between the panes. The glass type and thickness vary according to static requirements and design requirements. Standard make-up: Outer pane coated on #2 cavity 1: 8 mm, with air or gas filling Middle pane cavity 2: with 2 offset KAPIPANE slabs of 10 mm thickness each Inner pane coating capillary plates The 2-pane make-up consists of one 20 mm cavity with capillary slab and covering pane, in general without coating. Maximum angle of inclination of...

INFOTEXT Planning incstuctions The capillary slab in product type KAPILUX T diffuses the incident light. In doing so, direct sunlight expands to become a ring of light. This ring can be distracting in the case of demanding visual tasks. This is why it is preferable to use the KAPILUX W type for more sophisticated requirements. Builder-owners and architects must be able to technically assess the effect of glazing in daylight terms. Okalux offers such calculations as a voluntary extra service without obligation. The daylight-relevant properties of the room to be examined must be known; in...