How We Do It
We believe that houses have to be affordable to build and to live in.
Careful, conscious design paired with intelligent building practices produce some of the most sustainable homes available with average annual heating and cooling cost reduction by 90%.
The Passive House assures the highest level of comfort. Passive Houses use up to 90% less energy for heating and cooling.
Master Thesis Excerpt Passive House Design for Western Australia
Daniel Kress, MSc, ISMART Structural Engineer
[Source: Passivhaus Institut (2015) ]
Five Passive House Principles
Passive houses are designed specifically for low energy consumption and high indoor living comfort by applying five Passive House Principles:
1. THERMAL INSULATION
Thermal insulation is like the sweater for your home, keeping the desired heat / coolness inside. The thermal insulation in our system outperforms several times the insulation of traditionally built homes (even new ones).
The regulatory minimum R-Value is 2.9. Our systems R-values typically range between 4.5 to 8.9. Exact R-Values are client specific and depends on the project specifications.
2. PASSIVE HOUSE WINDOWS
Double-glazed or triple-glazed windows bring natural light in, without the summer heat or the winter’s chill, providing extra insulation for your home. Argon filled double glazed windows are installed in the workshop under optimal conditions to maximise air tightness.
3. AIR TIGHTNESS
If thermal insulation is like a sweater for your building, then air tightness is the wind breaker on top of your sweater. Thermal insulation works best when there’s no air movement in the building envelope which effectively seals the insulated building. Air tightness ensures that the temperature stays where you want it, when you want it.
Every project goes through a strict air tightness test allowing us to quickly identify any leaks in the envelope and resealing prior to completing the project.
We use the highest quality membranes, from pro clima, in all our buildings.
4. VENTILATION WITH ENERGY RECOVERY
Fresh air without losing the warmth or the coolness.
The Ventilation Systems circulates fresh air through the entire building while maintaining comfortable temperatures. It consumes the same amount of energy as a standard light bulb.
5. THERMAL BRIDGE FREE DESIGN
Thermal bridges are pathways for heat to travel in or out of your building. They are usually found in corners where there is less insulation and it is easiest for the heat to pass through.
Our homes are carefully designed to have virtually no thermal bridges.
In any place where thermal bridges could arise, the highest quality insulating material is used to minimise energy leakage.
Applying Passive House Principles for Comfortable, Healthy Homes