GREEN FOR GENERATIONS

GREEN FOR GENERATIONS 5

Energy footprint: Our products quickly start saving energy

Production of around 30 m 2 of triple-glazed insulating glass requires around 8000 kWh. The energy footprint is positive from the second year onwards*.

140 000 kWh

Positive energy footprint after 2 years

100 000 kWh

60 000 kWh

20 000 kWh

0

–20 000 kWh

12.

8.

30. years

6.

16.

18.

20.

22.

24.

26.

28.

0

2.

4.

10.

14.

Our insulating glass saves huge amounts of energy – and therefore also reduces carbon emissions.

Based on an average life of around 30 years, the total energy footprint of our window and façade glass is sig nificantly positive. Starting situation Reference single-family home* as at 1975 with old double-glazed insulating glass and oil heating. 30 m² double-glazed insulating glass: U g value 2.9 W/m 2 K

Saving with 30 m 2 triple-glazed insulating glass: U

g value 0.6 W/m

2 K

–1 500 kg

–570 l

–5 100 kWh

per year

–17 100 l

–45 000 kg

–153 000 kWh

after 30 years

*For details of calculation and comments, see www.glastroesch.com/calculation