“We strive for a world of zero energy loss buildings”

High energy losses today

There are many small gaps or leaks in the building envelope, for example between windows and masonry, this means that in a heated or cooled room air is constantly escaping.

Major heating requirements

To maintain the room temperature  at 20 °C in winter because of many leaks, powerful and permanent heating is therefore required.

Major cooling requirements

Over the next 30 years, 10 air conditioning units will be purchased every second globally. To stabilise the room temperature at 20 °C in summer because of leaks, powerful and permanent cooling is therefore required.

Leaking buildings intensify climate change

Low energy efficiency of buildings causes high CO2 emissions, which intensify the greenhouse effect and accelerate global warming, and thus the threat of climate change.


SIGA develops and produces high-performance products free of residential toxins that are resistant to ageing and provide an airtight seal for buildings of all types.

4 major advantages of airtight buildings

1. Greater living comfort

No drafts. Cold and heat stay outside, as do traffic noise and air pollution.

2. Save money, protect the climate

Energy consumption for heating and cooling drops significantly, and as a consequence also climate-damaging CO2 emissions.

3. Preserve value

Airtight buildings are permanently protected from wind, rain, drifting snow, insects and building damage caused by condensation and mould.

4. Active house feasible

The low energy consumption of an airtight building facilitates self-sufficiency with renewable energy. That’s how easy it is to turn a building into an active house.