BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses
BG Houses - Prefabricated houses

Passive House - The Standard

The Passivhaus standard requires that the building fulfills the following requirements:

  • The building must be designed to have an annual heating demand as calculated with the Passivhaus Planning Package of not more than 15 kWh/m² per year in heating and 15 kWh/m² per year cooling energy OR to be designed with a peak heat load of 10W/m²
  • Total primary energy (source energy for electricity and etc.) consumption (primary energy for heating, hot water and electricity) must not be more than 120 kWh/m² per year
  • The building must not leak more air than 0.6 times the house volume per hour (n50 ≤ 0.6 / hour) at 50 Pa (N/m²) as tested by a blower door.

The advantages:

  • Extremely low heating costs – even with rising oil prices;
  • Healthier living environment, with dust and pollen reduction, controlled humidity and free of mold and condensation;
  • High level of comfort – constant indoor temperature;
  • Greener and more environmentally friendly homes due to the huge reduction in CO2 emissions associated with space heating over the lifetime of the house;

Planning and Details:

A critical element to Passive House construction is the Passive House Planning and drawing detailing. Before construction can begin on-site all Passive House Planning and details must be carried out. This is calculated accurately using Passive House Planning Package software (PHPP) developed by the Passive House Institute, Darmstadt, Germany. Important details to achieve and follow:

  • Orientation of the building;
  • Super insulation;
  • Advanced window technology;
  • Sun protection for overheating;
  • Airtightness;
  • Solar gain;
  • Passive natural ventilation;

The first Passive Prefabricated House built by Bg House

In 2012 Bg House has built a prefabricated Passive house - in Germany, close to Munich. The house is in accordance with EN 13829:2001 Thermal performance of buildings. Determination of air permeability of buildings. Fan pressurization method.

Please check our Gallery Houses for more details.