Energy saving insulated glass

1. Technical Data

Dimension max. 3210 x 6000 mm

CLIMATOP ONE

Glass type	Light transmission τv to DIN 410 in %	Total energy transmission (g-value) to DIN EN 410	Ug- value to DIN EN 673 in W/m².K*
CLIMATOP ONE 12/12 mm (K)	58	37	0,4
CLIMATOP ONE 16/16 mm (K)	58	37	0,4
CLIMTOP ONE 16/16 mm (A)	58	37	0,5
CLIMTOP ONE 10/10 mm (K)	58	37	0,5
CLIMATOP ONE 8/8 mm (K)	58	37	0,6

CLIMATOP ULTRA N

Glass type	Light transmission τv to DIN 410 in %	Total energy transmission (g-value) to DIN EN 410	Ug- value to DIN EN 673 in W/m².K*
CLIMATOP ULTRA N 10/10 mm (K)	72	50	0,5
CLIMATOP ULTRA N 16/16 mm (A)	72	50	0,6
CLIMATOP ULTRA N 8/8 mm (K)	72	50	0,7
CLIMATOP ULTRA N 12/12 mm (K)	71	50	0,5
CLIMATOP ULTRA N 16/16 mm (A)	71	50	0,6
CLIMATOP ULTRA N 8/8 mm (K)	71	50	0,7

CLIMATOP SILENCE

Glass type	Noise reduction Rw, (C, Ctr)	Ug-value to DIN EN 673 in W/m².K* CLIMATOP ULTRA	Ug- value to DIN EN 673 in W/m².K* CLIMATOP ONE
42/42 6/4/44.1 SI, 12/12 mm (K)	42 (0,-5)	0,7	0,4
44/45 8/4/44.1 SI, 16/16 mm (K)	45 (-1,-6)	0,7	0,4
44/47 4/4/44.1 SI, 2 12/12 mm (K)	47 (-1,-6)	0,7	0,4

CLIMATOP ACOUSTIC

Glass type	Noise reduction Rw, (C, Ctr)	Ug-value to DIN EN 673 in W/m².K* CLIMATOP ULTRA	Ug- value to DIN EN 673 in W/m².K* CLIMATOP ONE
CLIMATOP ACOUSTIC 12/12 mm (K)	35 (-2,-6)	0,5	0,4
CLIMATOP ACOUSTIC 16/16 mm (A)	34 (-2,-6)	0,6	0,5

A = Argon filled cavity
K = Krypton filled cavity (Fill level ≥ 92 %)

* U_g-value for vertical glazing

U_g-Value

U-Values given relate exclusively to vertical glazing. U-Values for sloped or horizontal glazing are worse. In European Standard EN 673 Point 5.3.1 and 5.3.2, values for the calculation of horizontal glazing are given. As an example, a U_g-Value of 1.1 W/m²K in vertical glazing increases to 1.7 W/m²K when horizontally installed.

The U_g-value tables to DIN EN 673 show the performance of insulated units at a glance. The tables have been created by ift Rosenheim and indicate the given values in accordance with the European standard.

2. Edge seal

2.1 Standard composition

Triple-glazed insulating glass with closed-end,bent corner spacer system. Aluminium spacer 0.067 ψ W/m.K. Dual seal system with primary seal of Polyisobutylene and secondary seal of Polysulphide.

2.2 UV-resistant edge seal / Silicon Structural Glazing

It is possible to achieve a gas-filled UV-resistant cavity using silicone as the secondary edge seal and CHROMATECH PLUS spacer bars. The requirements of EN 1279-2 are fulfilled by such insulated units. The requirements given in this Eurocode have been substantiated in test report TC-RAP-06-18364.

Warm-Edge solutions recommended

The insulating glass range CLIMATOP are not only available with conventional Aluminium spacer bars but also with spacers with low energy transmission. This „Warm-Edge“ system reduces the thermal bridges at the edge of the and improves the thermal performance of the window by up to 10 % and at the same time minimising the risk of condensation at the edge of the glass and frame.

The window-integral warm bridge is characterized by the linear thermal transmittance coefficient ψfg or „ψ-Value“ and is taken into account when calculating the U_W-Value of the window.

In the new EN ISO 10077-1 standard, the thermal transmission coefficient of a complete window is determined from the U-values of glass and frame areas as well as the ψ-value of the glass perimeter.

CHROMATECH PLUS

Measurements and calculations at ift Rosenheim have shown that thin-walled stainless steel spacer systems have significantly lower ψ-values. A typical comparison of use in aluminium, wood and PvC frames is as follows:

Frame material	Linear thermal transmittance coefficient Ψ W/m.K for CLIMATOP
	CHROMATECH PLUS	Aluminium
Wood	0,045	0,08
Metal with thermal break	0,056	0,11
PVC	0,044	0,05

It is possible that CHROMATECH PLUS reduces the U_W-value in windows – depending on the frame material – by approx. 0,1 W/m².K. The likelihood of condensation at the edge of the insulating unit is visibly minimised.

Simplified standard value calculation

For window frames it is possible to use simplified standard values in accordance with appendix E2 and E8 of EN 10077-1, E3. The simplified calculation tends towards worse results.

We recommend the use of black CHROMATECH PLUS.

In stock available for cavities of 10, 12, 14, 16, 18, 20 mm