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Passive house

Passive house

Ideal indoor climate

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The concept of a passive house is relatively new, but we fully support it! With a passive house, you can create a living space that requires very little energy for heating or cooling. This allows you to reduce your energy bills by more than 50%!

By “passive house” we mean a very high standard of energy efficiency awarded to a residence or building where the carbon footprint or environmental impact is extremely low.

We were the window manufacturer for the first certified Passive House in Australia in 2011. 

Since 2018, Blue Sky Windows is one of the few uPVC window manufacturers in Australia to be certified in the manufacture of structures for passive houses as a Certified Passive House Consultant.

OUR BENEFITS

Energy efficiency

Energy efficiency

Comfortable indoor climate

Comfortable indoor climate

Up to 50% savings on bills

Up to 50% savings on bills

High level of noise reduction

High level of noise reduction

Improved air quality

Improved air quality

Resilience to climate conditions

Resilience to climate conditions

Durability and resistance

Durability and resistance

Ecological responsibility

Ecological responsibility

Check our passive house opening types

Fixed Tilt & turn Lift & Slide Hinged French Tilt and Slide

Fixed windows

Our fixed passive house windows can be various sizes and shapes, can be double or triple glazed with introduction of warm spacers, you don’t have to compromise on the look while building a Passive House of your dreams.

 

Electricity2

Uf value = 1.44 (top, bottom, left and right)

Bal 40

BAL 40 certified

glass type

Double or triple glazing up to 37 mm thick

project type

Double rubber seal for maximum air tightness

window size2

Max size 4500×2700 mm

Technical Information

How to choose passive house windows and doors

When it comes to choosing Passive House windows and doors there are three important attributes that have to be present:

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U-value – achieving heating and cooling demands.

Windows U-value for Passive Houses consists of more factors than what we typically see in Australia. Apart from frame and glass components that are typically part of the U-value, there are few more values that are considered in the calculation: spacer thermal bridge and frame installation value based on the installation details and frame location in the wall. These two factors can play a significant role in the Passive House as they can be the condensation factor that will mean a failure of the concept.
Here are our details for the values of our items:
Our uPVC windows and doors have a frame U-value of around 1.2 on average (varies for each particular profile setup and combination).
The glass U-value range we recommend based on climate data and requirements is:

  • Double glazed with Light Bridge – 1.36
  • Triple glazed with Light Bridge – 0.9
  • Triple glazed with 2 Light Bridge panes – 0.7

Obviously, warm edge spacer is available for all the glass combinations above with any of the frames.

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Air tightness – will my windows pass the Blower Door Test?

Since this is a critical point for success a lot of architects and designers are often confused as to how to pick the compliant product. A lot still believe it is a guessing game and anything is possible.
However, this is not true!
Windows and doors that we sell have tests that were completed with leakage values. Every time you refer to us a project that will be Passive House we will ask for the TFA and volume values to determine how much air leakage windows and doors are allowed to have.
Windows and doors can’t have a leakage of complete 0 – it is impossible. Some of the tests neglect the results by saying that leakage is too low to specify. However, it is never a zero. So in order to identify the potential loss the best way is to calculate it and multiply by safety factor. This will help to determine whether some extras will be needed such as concealed hinges, allowing some sliding door styles and french doors etc. Because even things like having inward and outward opening windows in the same area can change the blower door test results.

Condensation and thermal bridges – will it perform in the long term as required?

Passive House is not only about certification. It is designed to last for a long time, so have to do the windows and doors. The biggest test for success in Passive House is condensation. If that has occurred it means either components are incorrectly used or design went wrong. There are usually two points of condensation and thermal bridging in windows and doors that have to be looked at and eliminated:
Glass edge spacer – use of warm edge spacer is critical for passive house as it does not only improves the U-value, but most importantly removes condensation problem on the glass.
Installation detail – avoiding any metal brackets, sections and installing the window in the correct section of the wall area – these are all important factors for thermal bridging and condensation avoidance.

Style and quality in every element

If you are in early stage of designing your future Passive House then it is a perfect time to make your windows and doors choices. Contact us today to find out more about our Passive House Windows and Doors. 

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