THERMOBEL STOPRAY Double glazing for solar control and enhanced thermal insulation

LIGHTCHARACTERISTICS 100%100%47%43%24%49%24%3%

EXTINT

Spacers available

Incident light

8 - 12 - 15 - 16 - 18 - 20 - 24 mmIn Warm E version : 12 and 15 mm

Light Reflection LR ENERGYCHARACTERISTICS Lighttransmission LT

Size tolerances

Incident solar energy

Glass up to 6 mm thick: ± 2 mm Glass thicker than 6 mm: ± 3 mm

Direct Reflected Energy RE Direct EnergyTransmission DET Solar energy reradiated

Thickness tolerances

Glass up to 6 mm thick: ± 1 mm Glass thicker than 6 mm: ± 2 mm

Solar energyreradiated in EA Energy absorption EA

Technical information

MAXIMUM SIZESMINIMUM SIZES Insulating glazing

3000 x 5000 mm300 x 900 mm

Structural insulating glazing (silicone)

2500 x 4800 mm300 x 900 mm

Insulating glazing with

laminated and coated (*) 4700 x 3210 mm300 x 900 mmtoughened glass4 mm: 1100 x 2200 mm300 x 900 mm5 mm: 1700 x 2500 mm300 x 900 mm6 - 12: 4000 x 3000 mm or 4800 x 2500 mm 300 x 900 mmheat-strengthened glass4 mm: 1300 x 2200 mm300 x 900 mm5 mm: 1900 x 2700 mm300 x 900 mm6-10: 4000 x 3000 mm300 x 900 mm 4800 x 2500 mm300 x 900 mm
(*) Laminated glass available: 33.1 33.2 44.1 44.2 55.1 55.2 66.1 66.2 Other compositions upon request.

European standards EN 410

(

the symbols indicated between brackets are the official notations following EN 410
) Standard illuminant D65 : Reference illuminant between 380 and 780 nm used to calculate the light properties• • Solar Factor - SF (g) or Total Energy Transmission Ultraviolet Transmission ( U : Radiation transmitted through the glass. It is the sum of the Direct Energy Transmission (DET) and the part of the Energy Absorption (EA) reradiated to the inside of the building• Light transmission - LT ( T
O ) : Percentage of the light flux (illuminant D65) transmitted through the glass• Light reflection - LR ( S
O ) : Percentage of the light flux (illuminant D65) reflected by the glass•
VO ) : Percentage of the ultraviolet radia-tion (between 280 and 380 nm) transmitted through the glass• Solar radiation : Reference spectrum between 300 and 2500 nm used to calculate the energy properties• General Colour Rendering Index RD 65 ( R
a ) : This index gives a quantitative evaluation of the differences in colour between eight test colours lighted directly by the illuminant D65 and by the same illuminant transmitted through the glazing • Direct Energy Transmission - DET ( U
e ) : Percentage of the solar radiation transmitted through the glass• Shading Coeffcient (SC ): The Shading Coeffcient is obtained by dividing the Solar Factor by 87, which is the Solar Factor of 3 mm clear float glass: SC = SF/87 Energy Reflection - ER ( Q
e ) : Percentage of the solar radiation reflected by the glass• Energy Absorption - EA ( B
e ) : Percentage of the solar radiation absorbed by the glass. The absorbed energy is then reradiated to the outside and the inside at different rates depending on the characteristics of the glass, wind speed, internal and external tem-peratures- The U-value is given in Watts per m

EN 673

• U-value : The thermal Transmittance (U-value or former k-value) characterises the heat transfer through the central part of the glaz- ing. It is the amount of heat which is transferred through 1 m
2 and per Kelvin W/(m
2 .K) and is calculated under the following conditions:- temperature difference between bounding glass surfaces: 15 K - external heat transfer coefficient for uncoated glass = 23 W/(m
2 of glass surface per degree difference between external and internal temperature. •
2 .K- internal heat transfer coefficient for uncoated glass = 8 W/(m
2 .K)
THERMOBEL STOPRAY