IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Presentation:

Athanasia (Nassia) RoditiArchitect Engineer

Certified Passive House Designer

Stefan PallantzasCivil Engineer

Certified Passive House Designer

Nassia:• Design &

Construction

Stefan:• Lessons learnt• Social impact

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Project locationPapagou – Athens

GREECE

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Project locationPapagou – Athens

GREECE

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

TFA:

1ST FLOOR = 85 Τ.Μ.GROUND FLOOR = 30 Τ.Μ.

Project description

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Application of EIFS on 1st floor + ground floor

Exterior walls

Building envelope

Heating demand 301 kWh/(m2a)Heating load 129 W/m2Cooling demand 77 kWh/(m2a)Cooling load 68 W/m2Estimated airtightness n50 =5.00 /h

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

BEFORE: Ubr.= 1,633 W/m2K AFTER: Ubr.= 0,178 W/m2K

Application of EIFS on 1st floor + ground floor

Exterior walls

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Interior insulation of Ground floor exterior walls

adjacent to the ground

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

BEFORE:Ustone = 2,632 W/m2K

AFTER:Ustone = 0,470 W/m2K

Interior insulation of Ground floor exterior walls

adjacent to the ground

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Exterior insulation of roof

BEFORE:Uroof = 3,442 W/m2K

AFTER:Uroof = 0,100 W/m2K

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

BEFORE:Uslab = 3,959 W/m2K

AFTER:Uslab = 0,484 W/m2K

Interior insulation of GROUND FLOOR slab

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Interior insulation of 1st FLOOR slab

with wooden finishBEFORE:Uslab-wood = 1,562 W/m2K

AFTER:Uslab-wood = 0,408 W/m2K

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

• PARAPET• BALKONIES• COLUMNS & INTERIOR

WALLS TO 1st FLOOR SLAB• EXTERIOR WALL TO

GROUND SLAB

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

THERMAL BRIDGE FOR UNINSULATED BALCONY

Ψ = 0,628 W/(mK)

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

BEFORE:

Uf= 2,50 W/m2K

Ug= 5,80 W/m2K

g= 0,87 W/m2K

AFTER:

Uf= 0,78 – 1,00 W/m2K

Ug= 0,55 W/m2K

g= 0,54 W/m2K

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

WINDOW INSTALLATION ON THE LINTEL

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

WINDOW INSTALLATION ON THE INSULATION

LAYER

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

• SOLAR GAINS MAXIMIZATION

• WINDOW SHADING

Summer concept and shading

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

• PASSIVE HOUSE DOORS

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

One HRV for 1st FLOOR

Effective Heat Recovery Efficiency = 92%

Subsoil Heat Exchangerwith Effective efficiency = 64%

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

One HRV for GROUND FLOOR

Effective Heat Recovery Efficiency = 89%

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

EnerPHit:First one on the SE

Mediterranean area

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Lessons learnt

Teamwork!

8 CPH Designers60 Craftsmen

150 Days

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Lessons learnt

PHPP 9

Is the Tool !

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Lessons learnt

Insulate first!

15 kWh/(m2a)

10 cm of external

insulation +

double-glazed windows

10 W/m2

20 cm of external

insulation +

double-glazed windows

with a high g-value

triple-glazing Ug = 0.5 W/(m2K)

g-value of 0.54

15 cm of external

insulation+

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

BLOWER DOOR TESTn50 = 0,56 ACH

Lessons learnt : If you know where to “tape”, then airtightness is easy!

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Lessons learnt

HRV :

Handmade!

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Lessons learnt

Monitoring & public info

Give the users the data they

need!

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Social impact

Passive House Days

>300 Visitors

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Social impact

HPHI Headquarters

4 CEPH courses36 Participants

6 events300

participants

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Social impact

PROJECT WEBSITE

Info material

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Measurements

PHPP is right!!!

FINAL ENERGY CONSUMPTION DEC 2015-MARCH 2016 (KWh)

MonthTOTAL PHPP

TOTAL MEASURED

HEATING PHPP

HEATING MEASURED DHW PHPP

DHW MEASURED

DEC 579,73 414,96 294,00 263,82 114,14 96,24JAN 667,73 602,35 414,00 367,45 82,35 50,34FEB 616,65 393,70 393,00 206,57 63,56 57,87MAR 369,73 326,00 184,00 141,35 14,12 12,08

SUM 2233,85 1737,01 1285,00 979,19 274,17 216,53KWh/m2 TFA 19,49 15,16 11,21 8,54 2,39 1,89Euros/day 3,14 2,44 1,81 1,38 0,39 0,30

Total Winter Cost 297,90

Total Heating Cost 167,93 PER DAY 1,38 €

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

TFA 115 m²

Energy price 1st year 0,172 €/kWhAnnual cost increase 5,00 %yearInflation 1,00 %/yearReal annual cost increase 3,96 %/yearTime period 10 years

energy consumption for heating of existing houseper m2 300 kWh/(m²year)Total Energy Consumption 34.620 kWh/yearenergy costs 1st year 5.937 €/year

energy consumption for heating after retrofit 11 kWh/(m²year)Total energy consumption 1.269 kWh/yearenergy costs 1st year 218 €/year

Additional Retrofit Costs /m2 400 €/m²Total costs 46.160 €

Financing the additional costTime Period 10,00 yearsnominal annual interesr rate 4,00 %/yearreal interest rate 2,97 %/yearAnnuity a 11,71 %/yearAnnual costs of financing 5.403,16 €/year

Cost effective

YES!!!It is

IPHC16 Darmstadt Germany Authors : Nassia Roditi, Stefan Pallantzas © Passivistas2016

Thank You!

For Bella and Noche…

Passive HouseLive in comfort!Save Energy!Save the planet!