Variant 45-192 as a passive house

The highest level of energy-saving

 

Experience the innovative energy-saving concept of a passive house with our “Variant 45-192” passive exhibition house. In addition to all of the relevant technical details that are needed for a passive house, the planning of the everyday usability and a high standard of living are at the forefront of this design. The exhibition house was officially certified by the Passive House Institute based in Darmstadt. This guarantees that the house complies with the maximum values outlined by the Institute, such as those for the annual heating requirement, air-tightness and primary energy requirements.

 

  • Annual heating requirement ≤ 15 kWh/(m²a)

  • Heating load ≤ 10 W/m²

  • Air-tightness n50 ≤ 0.60/h<

  • Primary energy requirement ≤ 120 kWh/(m²a) (incl. all electrical  consumption)
    A house built to these requirements uses the equivalent of maximum 1.5 litres of heating oil per square metre per year.

 

 

Solar energy: Environmentally friendly and free

 

As solar energy makes up the primary contribution to the heating of a passive house, it is important that lots of solar rays fall on the house. This is best done by having the house face the south. On the south side of the house there needs to be extensive window frontage that can capture the sun’s energy. Window frontage on the north of the house should be minimised. Even in the house planning stage and during the selection of the building plot, you must ensure that no neighbouring buildings or large shady trees cast shadows over the window frontage of the passive house.

 

Extremely high thermal insulation in a passive house

 

A passive house is a building that is particularly well insulated. Thanks to this extremely high level of thermal insulation, almost no heat is lost through the walls, roof or windows. The heating energy required by the house is almost completely made up by solar energy. The rest of the warmth is provided by the residents themselves, with each person giving out around 80W of energy per hour into their surroundings. The operation of electrical devices, such as a hairdryer, the oven and the stove all contribute to the heating of the rooms.

Windproof building shell and modern ventilation technology

 

High demands are placed on the tightness of a passive house. It is very important to make sure that no cool outside air can get in and take the valuable heat out of the house. For this reason, all the butt joints in a passive house in the external walls, the roof and the windows and doors must be carefully sealed. The air-tightness of a house can be checked with a so-called blower door test.

 

The Hanse Haus passive house wall
(approx. 410 mm)
 

1.

2 mm external rendering

2.

3 mm reinforcement fibre plaster

3.

Reinforcement webbing

4.

250 mm thermal insulation, thermal conductivity group 032

5.

8mm OSB panel (multiple glued and pressed panels made of coarse wood chips with particularly high strength)

6.

125 mm timber framework

7.

125 mm thermal insulation in the compartment, thermal conductivity group 035

8.

Electrical installation channels

9.

8 mm OSB panels

10.

12.5mm plasterboard

11.

Wall covering

12.

Passive house window with triple glazing
(U = 0.6 W/m²K) and insulated frame

 

Hanse Haus passive house roof construction

 

 

1.

Clay roof tiles

2.

60/40 mm battens

3.

48/24 mm counter battens

4.

water-permeable sarking membrane

5.

260 mm thermal insulation, thermal conductivity group 035
between the rafters

6.

Water-permeable barrier

7.

100mm installation level with additional
heat insulation

8.

12.5mm plasterboard

9.

Wall covering

An energy performance certificate clearly illustrates the energy requirements of a building using a colour scale, and enables the quick comparison of the HANSE passive house with other houses.

 


In terms of heating, there are several ways to meet the low heating requirements of just 15 kWh per square metre per year in a passive house. We recommend the following technology packages for your HANSE passive house, for other alternatives please speak to your consultant:

 

 

Option 1: The consistently economical solution

 

A small gas condensing boiler with a controlled ventilation system combined with heat recovery. The performance of the gas condensing boiler is perfectly suited to the low energy requirements of the passive house.

 

Option 2: The consistently ecological system

 

Fresh air is pushed through a ground collector and the warm exhaust from the compact ventilation system is pre-heated with heat recovery. The low heating requirement is covered by a micro heating pump and transfers the heat to the rooms via underfloor heating.

 

This technology package is also used in our passive exhibition house.

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