There are many reasons to build a Passive House, as outlined below:
There are different interpretations on what constitutes a ‘Passive House’. However, MosArt uses only the definition provided by the Passivhaus Institut in Darmstadt, Germany, as follows:
Achieving the first three of the above is required for official Passive House Certification. The optimal heat load above should be achieved if you wish to heat your home via the mechanical ventilation system.
|Passive House Component||Typical Passivhaus Standard Required for Irish Climate|
|Super Insulation (walls, floor, roof)||U < 0.15 W(m2K)|
|Triple Glazing||U < 0.8 W(m2K)|
|Mechanical Heat Recovery Ventilation||Heat recovery efficiency > 75%|
|Small capacity back-up heating system||Pellet boiler, compact unit, gas, etc.|
|Heat delivery||Normally through air ducting, but could be underfloor heating or radiators|
|Solar shading||Often required over south facing windows to prevent overheating in summer|
|Household appliances||A-rated recommended|
|Lighting||CFL or LED recommended|
|On-site renewables||Thermal solar collectors for domestic hot water recommended|
Precise detailing of your project will ultimately require testing and verification in the PHPP software.
As you might imagine, achieving a Passive House is no mean feat. Fret not, however, as MosArt has considerable experience in all aspects of design and construction and can help you from first sketch designs right through to project completion.
As expected, it is more expensive to build a passive house than a conventional house.
A Passive House construction type offers the highest level of thermal comfort possible. However you may wish to go above and beyond passive house standards by incorporating your own off-grid power supply onto your passive house.
Additional features such as photovoltaic panels and wind turbines can help you achieve this by feeding as much energy into the grid as you take out. A construction that meets this criteria is knows as net carbon-neutral.
Some buildings actually generate an excess of power, on average feeding more electricity into the grid than they take from it. We call this an Energy Plus House.
This excess energy can be sold to the grid, or can be used to power other needs, such an electric car. Just imagine, no more utility bills or car fuel expenses!
This is not the future. It's the present! MosArt can make this your reality. Call us today on 0404 25777