Building a Brighter Future for Our Children with ENERSign


According to a report put out by the World Green Building Council, the building sector is responsible for a whopping 30% of global emissions. The same report states that every single building on this planet will have to be Net Zero by 2050 to keep global warming under 2 degrees.

Those numbers are staggering to behold.


Humanity has been building for about 10,000 years, according to sciencemag.org. That’s roughly when the first farmers erected shelters for food supplies (we think). While there are certainly few buildings left of that age, to retrofit or rebuild every building on earth is a monumental feat –we humans are capable of such things.


What is a Net Zero Building?


A net zero building is a building that uses as much energy as it produces. Similar to a passive house, a net zero building is extremely energy-efficient. The difference between a passive home and net-zero is that a passive home doesn’t produce its own power.


Both passive and net zero buildings share many of the same strategies. They both involve a huge focus on creating an airtight structure. This is because, of course heating or cooling needs to be done less as the air is contained.


What is Required to Build or Retrofit for Net Zero?


As mentioned, special care needs to be taken in the insulating of the building. This means building using premium insulation. It also means that you are going to need to hire somebody familiar with net zero building practices. The same standards for building and insulating a regular home won’t cut it when it comes to building and certifying a net zero home.


This also involves considering the kinds of materials you are using to build with and the design of your home. Utilizing energy efficient appliances rather than regular ones is crucial for saving water and electricity and reducing your carbon footprint


Your next consideration is going to be your power source. Passive homes rely on using less energy until green sources become available, but net zero homes have their own system. At the present moment, this is more often than not a solar panel system.


Windows must also be carefully considered. They must be at least triple paned, and passive home certified. This is such a specialized aspect of the building that it is crucial to find a manufacturer who can supply you with an installer in your area. We at ENERsign windows are a world leader in providing windows for net zero buildings. Our windows are passive certified and you will find local installers right on our website.


We are committed to doing our part and helping the world back on track with our award-winning patented window system. Made in Germany with an outer aluminum shell and wooden interior finish, we are helping to create a new, greener tomorrow.

Welcome to ENERsign® Price Configurator with U-Value window Calculation:

You don’t want to go through the trouble of obtaining various offers, but would like to find out the recommended prices and U-values for our high-quality ENERsign®primus window? Then try our price configurator, here you can put together your desired windows as you wish and try out different sizes and designs.

All you need is the desired dimensions and window types and you can configure immediately. The window price and U-value window will be adjusted automatically, so that you always have an overview and can compare directly.

We are uncompromising in the product we offer:
ENERsign®primus elements with at least triple glazing with a U-value glass of 0.52 W/m²K and a g-value of 53%. Other designs and special glasses are available on request.

Welcome to the ENERsign® U-Value window configurator:

The U-value window is also called heat transfer coefficient and according to the standard DIN EN 10077 it indicates the amount of thermal energy lost through a window to the outside.

The U-value window is calculated using the formula W/(m²K), i.e. watts per square metre and Kelvin. This value refers to the entire window and defines the amount of energy per unit of time that flows through an area of one square meter when the air temperature on both sides differs by one Kelvin. The lower this value is, the less energy or heat the window emits.

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Gesamtpreis (inkl. 19% MwSt)
0€ - 0
Potentially avoided CO2 emissions over 30 years :
Potentially saved energy and CO2 costs over 30 years:
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0 (W/m2K)
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