Key figures PHPP:

PHPP 1998 - Passive House Planning Package (first)

PHPP 2014 - Passive House Planning Package (for certification)

PHI Certification-ID:                               8941

Treated floor area:                                 140 m²

Annual heat demand:                              13.0 kWh/m²a
End energy demand:                               43.9 kWh/m²a

Primary energy demand:                        114.1 kWh/m²a
Heat load:                                              10.0 W/m²

Averaged real consumption over nine years:

Annual heat consumption:                         11.3 kWh/m²a
End energy consumption:                          31.3 kWh/m²a
Primary energy consumption:                    69.6 kWh/m²a

Airtightness n₅₀ (Test 1999):                     0.41 1/h
Airtightness n₅₀ (Control test   2007):        0.42 1/h

Key figures national standard:

OIB Richtlinie 6 (Stand 1998) - Oberösterreich - Energieausweis

Gross floor area:                                       179 m²

Annual heat demand:                                10 kWh/(m²a)

Roof construction:                    U-value 0.08 W/m²K

             extensive greening
  8.0 cm substrate
  1.5 cm dimpled sheet with fleece
20.0 cm XPS CO2 foamed - world premiere
  1.2 cm 3-layered polymer bitumen sheeting root-resistant
33.0 cm mineral wool roof insulation panels
             Difunorm Vario
  4.0 cm tongue-and-groove fire-protection cladding, untreated
24.0 cm glue-laminated girders load-carrying stucture , untreated

Exterior wall:                             U-value 0.10 W/m²K

  2.5 cm gypsum plasterboard, 2-layered
10.0 cm mineral wool between upright wooden members
            vapour barrier
  1.6 cm oriented strand board
30.0 cm TJI joists with mineral wool
  1.6 cm diffusible wood fibreboard
             Wind-proof fleece
  2.4 cm battens
  3.0 cm counter-battens
  2.4 cm larch formwork rough-sawn untreated

Floor slab :                            U-value 0.12 W/m²K

  3.0 cm OSB sealed
18.0 cm mineral wool between height-adjustable distance floor construction
  0.5 cm humidity insulation
25.0 cm foundation slab steel-fibre reinforced
12.0 cm XPS CO2 foamed
30.0 cm recycled demolished concrete

Window:                                  U_w-value 0.87 W/m²K

Window frame                            U_f-value 0.75 W/m²K

wooden windows with 4.0 cm highly compacted cork core frame

Glazing Climatop Solar               U_g-value 0.70 W/m²K
                                                g-value 60 %
Glasabstandhalter Swiss Spacer

Window frames fully superinsulated
Insulated blinds with el. drive

Exterior doors:                            U_d-value 0.62 W/m²K
Wooden door and frame in Lärche with 10 cm cork insulation

Type of ventilation system:

Compact unit with exhaust air heat pump

Controlled living space ventilation with heat recovery from exhaust air by compact unit including cross flow heat exchanger and micro heat pump, intake air pre-heating provided by supplementary heating register
30 m ground heat exchanger at a depth of 1.5 – 2.0 m
Producer: J. Pichler, combination apparatus PKOM4classic

The compact aggregate is certified by the Passive House Institute

Because of it's space requirements of only 0.75 m², including a 212 liter hot water boiler, the compact ventilation system could be placed on the toilet.

All the ventilation pipes are "Spiro Wickelfalzrohre", which are viewable below the wooden beam ceiling. The cold incoming and outgoing air pipes are insulated with 10 cm aluminium foil-claid mineral wool.

Heating system:

100 % green electricity for power demand.
Mean annual power consumption for ventilation, heating, domestic hot water and auxiliary current only 1470 kWh (equals average power consumption of auxiliary current alone in conventional single-family homes [e.g. circulation pumps] and residual current

Reserve heating 1 emergency 2 kW bioethanol-fired stove of max. 2 kW, free-standing in the living room, without chimney.
Annual consumption of high-proof alcohol 11 litres!

Hot water:

The needed hot water is produced from the outgoing air by the micro heat pump of the compact aggregate with cross-flow heat exchanger and saved in the 212 liter hot water boiler.

Electricity saving concept:

All electrict devices were bought according their energy efficiency class.

Stromerzeugung:

100 % green electricity consumption