Passive House Consultancy Services
What is a Passive House?
Passive House is a building standard that is truly energy-efficient, comfortable and affordable at the same time.
Passive House is not a brand name, but a tried and true construction concept that can be applied to any building, anywhere.
By reducing energy losses with a ‘fabric-first’ approach, a Passive House can use as little as 10% of the energy of existing housing stock, and up to 75% less than current new-builds.
How Can We Help?
We at Locke Passive House Consultancy work with your architect and build team to design insulation strategies, air-tight details, reductions in space heating and cooling demand, outline Mechanical Ventilation Heat Recovery (MVHR) systems, to get your project to meet Passive House Institute (PHI) criteria and become a Certified Passive House.
Five Basic Principle of Passive Houses
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Warm and comfortable buildings are a product of careful design and continuous insulation.
We can design your insulation to be internal and maintain your fascade, external to maximise floor space, or a combination of the two.
Space is precious, so we keep up to date on the latest in insulation technology in order to offer you space-saving insulation products for when you need every square inch.
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Triple glazed windows with the right glass in the right place to create a safe, warm and serene environment.
Doors and windows are carefully specified to retain the character of your property, whilst also gaining the most free energy from the sun and keeping the noise out.
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By integrating whisper-quiet mechanical ventilation, you’re provided with healthy, filtered fresh air 24/7. The heat recovery unit pulls the warmth from the stale air and pre-heats incoming fresh air.
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By sealing off even the tiniest of unintended draughts we can keep dust, pollution, unwanted moisture and bugs outside.
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By carefully considering how your home is built, we can design out cold spots caused by uninsulated junctions, keeping your spaces consistently warm.
Passive House Criteria
Space Heating
Heating demand <15 kWh/(m²/a)
Heating load <10 W/m²
Frequency of Excessively High Humidity
<20% (>12 g/kg)
Space Cooling
Cooling demand <15 kWh/(m²/a)
Cooling load <10 W/m²
Non-Renewable Primary Energy (PE)
<120 kWh/(m²/a)
Airtightness
<0.6 n50 1/h
Primary Energy Renewable (PER) Demand
<30, 45, 60 kWh/(m²/a)
Frequency of Overheating
<10% (>25°C)
PER Generation Relative to Building Footprint
<0, 60, 120 kWh/(m²/a)
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