Retrofitting for the energy revolution,

one step at a time

EuroPHit

EPBD – National implementationNZEB – MS report

on progressEED – Entry into

force

EPBD – MS list of measures and instruments

RES Directive – Minimum levels of RES

EED – Assessment of national transposition

NZEB – MS report on progress

NZEB – All new public buildingsNZEB ! MS report

on progress

EPBD – Applicationbetween 9/01/2013

and 9/07/2013EED – National

implementation

EPBD – MS updated list of measures and instruments

NZEB – All

new/refurbished

buildings

2012

2013

2014 2017

2015 2018

2020

Here we are

EuroPHit project starts

EuroPHit project ends

2013

Strategic objectives

2016 20202014

The policy background

High efficiency

Low efficiency

howto

get th

ere?

Reduce consumption!

EU’s 2020 objective:

All new/refurbished buildings asNZEBs (Nearly Zero Energy Buildings)

Quality renovation

...achieved with the Passive House principles

IF you do it, do it right

Secondary school retrofit in Baesweiler, Germany

© Rongen Architects

Building stock

NZEB

• motivation

• disturbance of inhabitants

• life cycle of existing components

• financing

• competence

Com

plete

retro

fit

Ther

ew

ill b

ech

alle

nges

:

All at once

Building stock

step

by

• criteria and softare tool

• pilot projects

• suitable productsstep

Retrofit

• financing

instruments

• dissemination

overall

refu

rbis

hment pla

nEnerPHit

+ RES

...Or step by step

EuroPHit

The EuroPHit Project

With the EnerPHit Standard as the goal and Passive House

principles as the basis, EuroPHit applies knowledge on deep

energy retrofits to the oft+overlooked yet critical area of step+by+

step refurbishments

� Criteria and certification scheme for retrofits aiming for the

EnerPHit Standard of the course of years

� Financing models and market incentive programmes tailored to

step+by+step retrofits

� Design concepts and sound guidelines for the development of

suitable, high performance building components

� Specific energy balance tools for gradual energy retrofits

� Training materials and workshops focusing on the specific needs

of step+by+step refurbishment

� Building case studies showing the way towards an increasingly

high quality, energy efficient building stock.

Key project outcomes

1. Components step6by6step

What is step6by6step retrofit?

Building

stock

Insulation Windows,

airthightness

& ventilation

RES & heating

system

2. Facades / Sides / parts step6by6step

What is step6by6step retrofit?

Building

stock

North side South side +

windows,

airtightness &

ventilation

Rest +

RES & heating

system

Boundary

conditions:+5°C; 20°C

Existing situation:

Uninsulated with new windows

• temperature of key surfaces = 9°C

• problem areas behind furniture, in corners and at lintel

• internal relative humidity must be less than 38% to avoid mould growth

EnerPHit retrofit:

20cm insulation + PH windows

• temperature of key surfaces greater than 16°C

• no mould problems, even behind furniture!

• internal relative humidity can reach 62% without fear of mould growth

Boundary

conditions:

+5°C; 20°C

Airtightness measures count

n50 after retrofit: 0.35 h61

gasket, external render

rendering (outside)

airtight film

You can achieve the same airtightness in a retrofit as you

can in Passive House new builds!

Ventilation is key

Ventilation always makes sense: when you remove humidity, you

lower the risk of moisture damage!

• an old building may have more remaining thermal bridges

• a retrofit will become much more airtight upon installing new windows

• occupants are not used to opening windows regularly

• if you install a ventilation system, use an efficient one!

An issue of economy

Annual paymentsThe annuity method

• Initial costs: €106/m² – €20/m² for

removal of old plaster

• Loan taken at 2.5% interest

• Payments over 30 years at 4.8%

per year (interest + principle)

• Total costs: €3.86 / m² and year

• Total savings: €6.79 / m² and year

n in heating

• Total profits: €2.93 / m² and year

Result: an 8% tax free annual cash return

€

Example: investing in ETHICS

Guaranteed, risk6free and

tax6free

return of 4 to 15% annually

for 30 years!

Attractive at current energyprices

Can it be done?

Examples of the past

SFH Groove Cottage, Hereford (UK)

Client: Andrew Simmonds and Lorna Pearcey, GB

Architect: Simmonds.Mills Architects, GB

Completion: 2009

Before After refurbishment 25 kWh/(m²a)

Listed office building, Rimbach (DE)

Client: Grundstücksgesellschaft Schlossstr. 9 Becker u. Martin GbR, DE

Architect: Peter Hinz, Planungsgruppe 7, DE

Completion: 2011

After refurbishment: 20 kWh/(m²a)

© Architect Planungsbüro Gruppe 7 GmbH & Co. KG

Before

© Architect Planungsbüro Gruppe 7 GmbH & Co. KG

Governmental offices 6 Expost in Bozen (IT)

Client: Provincia Autonoma di Bolzano+Alto Adige, IT

Architect: Michael Tribus Architecture, IT

Completion: 2006

Before After refurbishment 12 kWh/(m²a)

Thank you

for your attention

www.europhit.eu

The sole responsibility for the content of this presentation lies with the

authors. It does not necessarily reflect the opinion of the European

Union. Neither the EACI nor the European Commission are responsible

for any use that may be made of the information contained therein.