A house without heating costs
Large windows on the south side with excellent sound and heat insulation
The roof design is suitable for Latvian weather
Efficient ventilation with heat recovery
High-quality house facade decoration
Well thought-out building structures
m2 living area
m2 total area including terrace and garage
Passive house design uses the PHPP energy balance calculations in which all geometrical building data, thermal and physical properties or materials, data about the house users, heating and the ventilation system loading schedule are entered in detail and the building orientation and Latvian climate data are taken into account. Such calculations are required to verify if the house meets the Passive House standard.
- Annual heating demand – 14.9 kWh/(m²a);
- Air tightness (n50) – 0,4 h-1;
- Heating load – 20 W/ m²;
- Primary energy requirement (incl. solar energy gains) – 10.6 kWh/(m²a).
Annual heating demand if house is positioned:
- to south – 14.9kWh/(m²a);
- to west – 29kWh/(m²a);
- to east – 30kWh/(m²a);
- to north -39kWh/(m²a).