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Financing and delivering the

retrofit revolutionRetrofit South East project

Paul Ciniglio - Sustainability Manager, Radian

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First use of 4% European Regional Development

Funding (ERDF) for retrofit of social housing in

2009.

421,000 grant secured for programme of researchto build low carbon retrofit capacity.

ERDF project outputs related to retrofit business

assistance provided to 85 SMEs.

Partnership project:

Retrofit South East project

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To retrofit or build a new community?

An Ideal setting for a Council estate.This aerial picture of part of theCranford Road estate shows the neatand airy spacing, with pleasant greensbetween the rows of houses. Althoughin complete contrast to the old town,with its splendid examples of

Georgian architecture, this essentialdevelopment is probably as tastefulas a Council estate can be.

Local newspaper 1950

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Retrofit South East project centrepiece (14 homes)

Solar street community + show home

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Modelled a 77%90% reduction in regulated CO2

emissions post retrofit.

Water efficiency improved by average 16% to 92 l/p/d.

85% of waste was recycled off site under SWMP. BREEAM domestic refurbishment pilot project.

Environmental strategy

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How C88 was achieved, Show home full SAP modellingScenario SAP

2005

Rating

EPC /

SAP

Band

Annual

Regulated

CO2

Emissions

kgC02/yr

Approx cost of

measure

Percentage

Reduction in

Regulated

CO2 Emissions %

Baseline as extg (Gas) 49 E 5,868- -

+ 100mm Phenolic foam

EW Insulation 69 C 3,46110,500

41%

+ Double loft insulation

to 300mm thick 70 C 3,284250

44%

+ 50mm vertical floor raftedge insulation 71 C 3,219

1,75045%

+ A-energy rated windows

and doors 73 C 2,7926,000

52%

+ Improved air tightness

& heat recovery ventilation 74 C 2,6503,000

55%

+ New A rated boiler &

cylinder plus controls 80 C 1,965

4,500

67%

+ 100% lowe lighting 81 B 1,923 250 67%

+ 2.1 kWp solar PV 91 B 972 9,250 83%

'+ Solar thermal 3msq 92 A 816 5,000 88%

+ 20mm aerogel ground

floor insulation 92 A 6925,500

90%

Sum of all measures 92 A 692 46,000 90%

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Continuity of insulation & air tightness

Before After

Before, REEMA panels After retrofit EWI -100mm

Air pressure test

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Working with residents

8 months lead in time / consultation period with residents.

Full time community liaison officer appointed.

On-site drop in office available throughout refurbishment.

Decant period was 10-12 weeks.

Community energy efficiency training and 1:1 home visits.

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Research and dissemination

Retrofit pioneers group established. SME retrofit network set up.

Mapping of regional retrofit exemplars.

Conferences, seminars and workshops.

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Regional retrofit benefits study Establish a market worth 460-850m/yr, on top of current RMI.

Create 4,100 - 33,000 jobs in installation, supply and support.

Enhance the asset value of regional homes by up to 22.4

billion.

Liberate over1 billion a yearin energy savings. Take at least 360,000 people out of fuel poverty.

Save up to 80 million on healthcare and up to 3,700 winter

deaths.

Save 3% of total regional waterconsumption.

Future-proof homes against climate change impacts.

Improve regional energy security.

And cut regional carbon emissions by one fifth!

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Through life emissions report releaseRetrofit v demolition and new build

Comparison analysed over 50 year period.

Advanced retrofit compared with:

Traditional and timber frame construction

Building Regulations Part L 2010, Code 4 & ZCH 2016 Emissions considered:

Embodied energy associated with new and existing

materials (locked in), construction processes

The in use emissions for heating and power

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Through life emissions report contd

Comparison of Lifetime CO2e emissions over 50 years between build types

0 50 100 150 200

Brick & Block (ZCH 2016)

Brick & Block (CSH Level 4)

Brick & Block (BRegs 2010)

Timber Frame (ZCH 2016)

Timbe r Frame (CSH Level 4)

Timbe r Frame (BRegs 2010)

Advanced Retrofit

Tonnes of CO2e

Deliveries by third

parties - LGV

Deliveries by third

parties - HGV

Materials - Substructures

Materials -

SuperstructuresRemoval of waste from

si te - LGV/HGV

Site energy consumption -

gas oil

Site energy consumption -

electricity

Site energy consumption -

natural gasLandfilled waste

In-use regulated energy

sources

In-use appliances &

cooking

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Through life emissions report key findings

Advanced retrofitted homes have lower emissionsthan a new home built to CfSH level 4 and ZCH 2016.

Considering all in costs for similar energy

performance:

Advanced retrofit costs almost 40% less A saving of approx 53,000 per dwelling

Around 20,000 UK homes are demolished every

year. If we retrofitted instead:

422,500 tCO2/year could be saved, Equivalent of 211,000 new homes.

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Project Summary Report releaseKey learning points and findings

Advanced retrofit is expensive but brings significantenvironmental, economic and social benefits over demolition

and new build.

Scaling up retrofit regionally has potentially massive benefits.

Understand the home, select correct whole house strategy.

Follow energy design hierarchy and use proven innovation for

more positive carbon value / abatement outcomes.

Energy modelling and targets:

rdSAP is inadequate to model true benefits of advanced

retrofit.

kg/m2/yr or CO2/m2/yr makes a better target and gives

fairer comparison than % emissions reduction targets

against baseline.

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Project Summary ReportKey learning points & findings contd

A community liaison officer is essential.

Briefing residents on energy efficiency requires a

sustained campaign approach.

Running cost savings of up to 60% post advancedretrofit are possible (be circumspect on predictions

given to residents).

Always evaluate the social, economic and

environmental aspects of the project.

The construction industry needs to up skill and gain

knowledge to sell new services - but where is customer

demand?

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Project Summary ReportKey learning points & findings contd

Continuity of air tightness and insulation is key detailing!

Ensure good Project Management

sequencing of work, integration of trades and on-sitequality control.

Beware the hidden costs of retrofit

not only capital costs of work.

ERDF / EU project management is very demanding.

The Green deal wont work for C80 advanced retrofit

What proven alternative financial mechanisms areavailable?

Improved resident comfort, well-being and satisfaction isrewarding - Heres what they said

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Resident feedback:

Its like having a new home on the same plot ofland, they are so much warmer, before they were

so cold and damp, we even had mould growing.

Its so much better now.

Ive been running on solar again all day today!

The bills are so much cheaper. Bearing in mind

what sort of winter we have had, I was really

surprised how much Ive saved.

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THANK YOU