Passive House Drumderry

7455
Last modified by the author on 17/06/2019 - 18:26
  • Building Type : Isolated or semi-detached house
  • Construction Year : 2016
  • Delivery year : 2016
  • Address 1 - street : Drumderry, Bunclody Y21 K8X3 CO. WEXFORD, Ireland
  • Climate zone : [Cbc] Mild, dry winter, warm and wet summer.

  • Net Floor Area : 227 m2
  • Construction/refurbishment cost : 330 000 €
  • Number of Dwelling : 1 Dwelling
  • Cost/m2 : 1453.74 €/m2

Proposed by :

Certifications :

  • Primary energy need
    40 kWhpe/m2.year
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

The project brief was to design a CertifiedPassive House on a sloping site in Drumderry. The dwelling is approached frombelow. This family Bungalow achieved Passive House Certification and the Bungalow also has a Irish BER of A1 @ 6.73 kWh/ m2/ yr (Audited result).

This is a single storey family house located in the Irish countryside. The design is contributing minimal impact on the surrounding landscapes, taking advantage of natural daylight and optimising the free heat from the sun.

See more details about this project

 https://www.winkens.ie/passivebc02.htm

Photo credit

Winkens Archiecture

Contractor

    Sean O'Brien, General Contractor

    Sean O Brien, Ballynastraw, Bunclody, Co. Wexford, Ireland

Construction Manager

Stakeholders

Contracting method

General Contractor

Type of market

Realization

If you had to do it again?

The builder was not used to building low energy dwellings. He was a good builder and needed quite some tutoring. Some of this torturing should have been done earlier in the build.

Building users opinion

We wanted and got a Passive House. The design works well and comfort levels are high throughout the Year.

Energy consumption

  • 40,00 kWhpe/m2.year
  • 40,00 kWhpe/m2.year
  • Other

    Annual heating demand 16 kWh /(m2a )
    Heating load 10 W/m2
    According to PHPP

Envelope performance

    Exterior wall:
    Fully insulated cavity wall, with 250 mm expanded polystyrene injected into cavity
    U-value = 0.129 W/(m2K)

    Basement floor / floor slab:
    Concrete floor slab insulated with 300 mm rigid insulation.
    U-value = 0.107 W/(m2K)
    Roof:
    Timber roof construction insulated with 420 mm mineral wool insulation.
    U-value = 0.084 W/(m2K)

    Frame:
    GUTMANN AG, MIRA therm 08
    Timber frame with insulation and external aluminium shell
    U w-value = 0.87 W/(m2K)

    Glazing:
    Saint-Gobain glass, CLIMATOP LUX
    Triple glazing 52 mm. Glass type 4(6)Gr- safety tempered glass. Warm edge spacer swisspacer.
    U g-value = 0.6 W/(m2K)
    g -value = 62 %

    Entrance door
    Solid insulated door
    U d-value = 0.86 W/(m2K)

    n50

  • 0,57

More information

With the PV installation, the house needs only 6.73 kWhpe /(m2a ).

Real final energy consumption

    6,73 kWhfe/m2.year

Systems

    • Geothermal heat pump
    • Heat pump
    • No cooling system
    • compensated Air Handling Unit
    • Solar photovoltaic
    • Heat pump (geothermal)

    Ventilation :
    Brink Climate Systems B.V., Renovent Excellent 300 (Plus)
    Heat recovery ventilation system supplying fresh air to all living rooms and extracting from all wet rooms. Effective efficiency of 84%

    Heating installation
    Air to water heat pump used to underfloor heating distribution.

    Domestic hot water
    Direct electric water heater from PV panels with air to water heat pump contribution.

    24.4 sq.m. of PV panels installed on the roof with an annual electricity yield of the inverter of approx 3678 kWh/a

    Reception rooms orientated due south fro solar gain.

Urban environment

    Green field Site in rural Ireland. Slightly hilly area.

  • 6 500,00 m2
  • 4,00 %
  • 5 500,00

Product

    Heat pump

    Unipipe.ie / Nibe

    Unipipe

     https://www.unipipe.ie/

    HVAC, électricité / heating, hot water

    Heating system:
    Air to water heat pump NIBE F2040 used to underfloor heating distribution.
    Hot water , direct electric water heater from PV panels with air to water heat pump contribution.

    The stake holder were happy


    Brink MHRV

    BRINK

    BRINK

     https://www.brinkhrv.com/

    HVAC, électricité / ventilation, cooling

    Ventilation:
    Brink Climate Systems B.V., Renovent Excellent 300 (Plus)
    Heat recovery ventilation system supplying fresh air to all living rooms and extracting from all wet rooms. Effective efficiency of 84%

    The stakeholder were happy.


    External; Windows and Doors

    True Windows

    True Windows

     http://www.truewindows.ie/

    Finishing work / Exterior joinery - Doors and Windows

    Windows:
    GUTMANN AG, MIRA therm 08, Timber frame with insulation and external aluminium shell
    U w-value = 0.87 W/(m2K) Glazing Saint-Gobain glass, CLIMATOP LUX, Triple glazing 52 mm. Glass type 4(6)Gr- safety tempered glass. Warm edge spacer swisspacer. U g-value = 0.6 W/(m2K) g -value = 62 %

    The stakeholder were happy.


    PV Array

    Solarelectric.ie

    Paul Murphy

     https://www.solarelectric.ie/

    Finishing work / Electrical systems - Low and high current

    Electricity:
    24.4 sq.m. of PV 15 panels installed on the roof with an annual electricity yield of the inverter of approx 3678 kWh/a

    The stakeholders were happy


    Insulation Floor

    Hytherm

    Hytherm

     https://www.xtratherm.com/

    Structural work / Passive system

    Floor:
    Strip foundation, concrete floor slab insulated with 300 mm rigid insulation EPS100. 65mm Sudanit 280 Fast Screed U-value = 0.107 W/(m2K)

    The stakeholder were very happy with the products


    Insulation Wall

    Thermobead

    Bunclody Insulations

    Management / Others

    Walls: Fully insulated cavity wall, with 250 mm expanded polystyrene (bonded bead) injected into cavity
    U-value = 0.129 W/(m2K)

    The stakeholder were happy.


    Insulation Ceiling

    Isover

    Isover

     https://www.isover.ie/

    Management / Others

    Roof:
    Slated, timber roof trussed construction insulated with 420 mm Isover Heat shield, mineral wool insulation.
    U-value = 0.084 W/(m2K) ceiling with suspended service cavity.

    The stake holder were happy


    Thermal Bridging

    Passivate

    Abdrew Lundberg

     http://www.passivate.ie/

    Structural work / Passive system

    Thermal bridging:.
    Mix of Irish ACDs, Quinn lite certified details and bespoke. First 2 course of Quinn Lite blocks, low thermal conductivity teplo cavity wall ties. Calculated Y-factor (W/m2K) 0.019

    The stakeholders were happy.

Construction and exploitation costs

  • 330 000

Indoor Air quality

    A MHRV system is installed.

Reasons for participating in the competition(s)

Drumderry, Bunclody, Co. Wexford - Ultra Low Energy House (new build)

Architect: Zeno Winkens MRIAI of Winkens Architecture

More project photos can be found at the following link: https://www.winkens.ie/passivebc02.htm

 Specification:


Walls
450mm, consisting of 100mm concrete block work outer leaf,

250mm cavity bonded bead 0.0343W/mK + Teplo ties and 100mm internal leaf concrete block work

with Quinn Lite B5 at perimeter floor slab and wall plate.

Floor Expanded Polystyrene (EPS 100) 0.033W/mK 300mm thick under slab normal strip foundations)

Ceiling 420mm Isover heatshield 0.035 W/mK
Windows Alucald Timber triple glazed argon filled
Heating system Air to water geothermal under floor heating system.
Nibe VVM 320
Secondary heat source 1 closed timber stove closed glass door.
Solar Panels Solar photovoltaic array 3.75kW
Ventilation Brink Excellent 400 Heat recovery system ...
Lighting Low energy light bulbs CFL's or LED Bulbs

?The design is simple but with a few interesting features. The living room and Kitchen dinner are three steps lower than the rest of the house and are angled due south. The bedrooms to the left of entrance hall is curved and has a window at the end. A low energy home for a young growing family was the main goal.

Building candidate in the category

Energy & Temperate Climates

Energy & Temperate Climates

Users' Choice

Users' Choice

Green Solutions Awards 2019 - Buildings
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Zeno Winkens

Architect


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