Biennial National Social Housing Conference 18 th September 2013

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1 Biennial National Social Housing Conference 18 th September 2013

2 Energy Efficient Retrofitting Turning Policy into Practice Parallel Session 3 18 th September 2013

3 Energy Efficient Retrofitting Turning Policy into Practice Sean Armstrong Architecture / Building Standards Section DECLG

4 Energy Efficiency Retrofitting-Turning Policy into Practice Seán Armstrong, Architecure/Building Standards Section, DECLG

5 Content of Presentation Overview of Local Authority Programmes Overview of Retrofit COP Scope Planning Fabric Services

YEAR PROVISION NUMBER of UNITS IMPROVED 2009 11M 1,155 2010

6 YEAR PROVISION NUMBER of UNITS IMPROVED M 1, M 1, M 2, M 2,115 TOTAL 99.9M 7,762

Halving of Provision for energy efficiency retrofitting to 10M Comfortable living baseline for ALL local authority tenants Baseline of 300mm attic insulation, cavity wall insulation, draught-proofing

7 Halving of Provision for energy efficiency retrofitting to 10M Comfortable living baseline for ALL local authority tenants Baseline of 300mm attic insulation, cavity wall insulation, draught-proofing and BER. Maximum grant of 3500 Average grant of 2000 Expected to upgrade up to 5,000 units Assistance from 4 Participating Energy Suppliers in exchange for energy credits Encouraged to participate in SEAI s Warmer Homes Area Based Programme.

8 2013 Jobs Stimulus Package Provision of 50M over 3 years; M M M Create up to 1000 jobs Continuation of Fabric Upgrade Programme, i.e. achieving a comfortable living baseline for ALL local authority tenants (300mm attic insulation, cavity wall insulation, draught-proofing and BER) Maximum grant of 2000 Expected to upgrade up to 25,000 units Assistance from 4 Participating Energy Suppliers in exchange for energy credits. Use of Community Based Organisations

9 5M provision for 2014 in addition to 25m from Jobs Stimulus Package. On certification by LA of achieving baseline, move on towards new baseline; external wall insulation, windows & doors Bids for European Regional Development Co- Funding; Southern & Eastern Regions 100M for flats (1,500 in Dublin) Border, Midlands & Western Regions 30M for disadvantaged estate

10 Retrofit Code of Practice Publication of NSAI/DECLG/DCENR/SEAI S.R.54: Code of practice Methodology for the energy efficient retrofit of existing domestic dwellingscompletedpublic Consultation. Comments being reviewed. Consultants-Building Research Establishment (BRE) Provides guidance for design and building professionals Contents include overall approach, fabric, services Schedule for completion Q4 2013

11 Scope of Document The intended users are designers, specifiers, contractors,installers and property managers working on energy efficient refurbishment projects for dwellings. Assumes that those using the document have appropriate qualifications and experience of working on construction projects. It is intended that the designer and/or installer should be able to go to the relevant technical section of the document associated with the fabric or services measures that they are performing and find the appropriate generic design or installation guidance. The scope of this Code of Practice (COP) addresses the energy refurbishment of fabric and services of more recent low-rise dwellings. Traditional Buildings as described in Heritage document Energy efficiency in traditional buildings are outside of scope of Retrofit COP (solid masonry walls of brick or stone, rubble) The main purpose of the COP is to provide technical guidance on the design and installation of retrofit measures to improve energy efficiency while: - maintaining the fire safety performance of dwellings; ensuring structural integrity, weather resistance and acoustic performance; maintaining healthy internal environments; controlling the movement of moisture. All materials and systems used shallbe fit for the use for which they are intended and for the conditions in which they are to be used.

12 Scope of Document Guidance is based on IS, EN andbs standard technical specifications whilst considering buildability and cost. Whilst guidance provides examples of performance levels for retrofitting it does notset performance levels. It is intended that these will be set by retrofit programmes/clients and/or designers and specifiers. Intended use of document is that it will initially be referred to by retrofit schemes and used by specifiers and designers as an installation specification. Some older / historic buildings perform and respond to the outside / inside environment in particular ways, often differently from more modern mid-to-late 20th Century buildings. Guidance on installing energy efficient retrofit measures for these buildings is contained in the Heritage document Energy efficiency in traditional buildings.

13 Overall structure Background/Planning Scope Standards and Regulations Terms and definitions Building science Planning a retrofit. Technical Fabric Floors Walls Roofs Openings Ventilation Services Heating Lighting o Describe existing condition and performance level o Scope and approach for improvement o Design and installation guidance for improvement Annexes

Technical research Therm al bridge analysi s ψ-values (potential use in DEAP model) Temperature factor to estimate risk of surface condensation Focus on fabric

14 Technical research Therm al bridge analysi s ψ-values (potential use in DEAP model) Temperature factor to estimate risk of surface condensation Focus on fabric Wall-floor, party wall, sills, intermediate floors, flat roofs etc. How has solution improved matters, or made them worse Publish finding s Results and images in Informative Annex G

15 Planning a retrofitexamples (Tabula)

16 Planning a retrofit-examples Application

17 Planning a retrofitexamples

18 Planning a retrofitexamples

Design considerations for each retrofit option, e.g. materials to use, adapting to existing conditions, technical risks etc.

19 Technical Section-Structures Describes different existing structures eg Walls Holllow Block, Cavity, Solid, Timber/Steel Frame Description of probable existing condition, likely problems and current performance level. Design considerations for each retrofit option, e.g. materials to use, adapting to existing conditions, technical risks etc. Installation considerations, e.g. construction sequence, particular detailing to avoid thermal bridging etc.

20 Performance levels Fabric Each element has up to 4 performance levels related to BR requirement, Good Practice, Best Practice and Advanced Best Practice U-values in Informative Annexes: A (Floors), B (Walls) and C (Roofs) Heating 3 performance levels for each fuel type Basic (Retaining existing fuel type), Improved (Better performance, possibly with fuel switching) and Advanced (Highest performance) Lighting 3 performance levels for general indoor, directional indoor and outdoor lighting Good Practice, Best Practice and Advanced Best Practice

21 Walls Design considerations Occupant disruption External and cavity fill insulation solutions only minor disruption. Internal insulation solutionswill most likely require decanting the occupant during the retrofit. Wall type Wall condition Ensure that correct wall type is identified by suitable survey. Driven rain exposure conditions may require external insulation, again ensure suitable survey. Rectify pre-existing defects, structural failure, dampness etc.

22 Walls Design considerations Interstitial condensation Ensure consideration of preventing interstitial condensation done for whatever insulation solution proposed. Internal insulation solutionsto solid walls, WUFI modelling inconclusive due to lack of data and external rain penetration. Ventilation Ensure that purpose provided ventilation for combustion appliances maintained Background ventilation and subfloor ventilation to be maintained. Thermal bypass or looping External insulation solutions to cavity walls, fill cavity also. Hollow block walls, seal at roof insulation level.

23 Walls Installation considerations Airtightness Ensure that all service penetrations and wall perimeters are sealed correctly. External wall insulation Internal wall insulation Use certified system and installer Provide perimeter insulation down to ground level to reduce internal surface condensation Reposition services. Ensure level surface prior to installing insulation Plasterboard on dabs may not be able to support internal wall insulation. Plasterboard provides fire resistance and may provide racking resistance to timber framed walls

24 Roofs design considerations 1 Roof condition Work on roofs (e.g. replace waterproof layers, rotted timbers etc.) provides opportunity for insulation Survey and strengthen roof to future-proof or accommodate solar technologies Services Freezing risk to water tanks/cylinders and pipework Overheating risk to cables and light fittings Airtightness around penetrations Access to services Condensation Key concern with warm, moist air from dwelling below Installation of VCL Provision of purpose-built ventilation

Roofs design considerations 2 Thermal bridging Junction between walls and eaves is key so insulation needs to be continuous Assessment in Annex G and H Light shafts Insulate walls of light shafts in

25 Roofs design considerations 2 Thermal bridging Junction between walls and eaves is key so insulation needs to be continuous Assessment in Annex G and H Light shafts Insulate walls of light shafts in loft area Flat roof access Access may be required for repair, means of escape etc. Assess imposed loads to ensure thermal insulation has appropriate compressive strength Cabling Insulation around cables can lead to overheating so best to route above If not possible, increase cable size to carry load Protect cables from polystyrene insulation

Ventilation Traditional forms of ventilation Windows and doors Adventitious Background Improvemen t methods Natural ventilation with intermittent extract fans Passive Stack Ventilation (PSV)

26 Ventilation Traditional forms of ventilation Windows and doors Adventitious Background Improvemen t methods Natural ventilation with intermittent extract fans Passive Stack Ventilation (PSV) Mechanical Extract Ventilation (MEV) Forms part of the overall refurbishment strategy Airtightness links to other CoP sections Loft hatches and light fittings (Roofs) Service entry points (Walls & Floors) Gaps around windows and doors (Openings) Use of wet plastering (Walls)

Traditional forms of ventilation Windows Rapid purge ventilation to disperse water vapour, odours and cooling Closing windows for long periods can lead to condensation and mould growth Double glazing

27 Traditional forms of ventilation Windows Rapid purge ventilation to disperse water vapour, odours and cooling Closing windows for long periods can lead to condensation and mould growth Double glazing can also lead to increase in surface condensation Adventitious openings Purpose provided vents for chimneys and heat producing appliances Uncontrolled infiltration through gaps and cracks, e.g. ill-fitting windows, service pipes etc. Background ventilation Purpose-built ventilators (air bricks, grilles, trickle vents) in habitable rooms Can be controlled

28 Improvement methods Integral part of the refurbishment strategy: Build tight, ventilate right Fabric improvements included in relevant section of the CoP Increasi ng complex ity SFP <0.3 W/(l/s) <2m 3 /m 2 /hr Airtightne ss testing recomme nded (<5m 3 /m 2 / hr)

30 Energy Efficient Retrofitting Turning Policy into Practice Parallel Session 3 18 th September 2013

31 Energy Efficient Retrofitting Turning Policy into Practice Paul Kenny CEO Tipperary Energy Agency

32 ICSH Annual Conference Energy Retrofit: Solutions from Experience Paul Kenny, Tipperary Energy Agency

33 About TEA "The TEA will lead and support Co. Tipperary to reduce its CO2 emissions by stimulating and implementing best practise in the field of sustainable energy 15 years old Established under EU save program. 12 full time staff by October; Established as a partnership between Tipperary LA s and LIT Shared service model: Local Authorities + Others. Now working on behalf of many LA s and SEAI. Significant EU project work, Community work and Private work Built community Windfarm, technical experts on EU & national funded group retrofit projects (>1000 houses), biomass boilers, Water services etc..

34 The Challenge: Retrofit Eliminate fuel poverty through reducing energy use and decreasing energy costs. 420,000 houses in receipt of fuel allowance. ~ 600,000 low income houses experiencing or at risk of Fuel poverty Rising energy costs, lowering incomes => growing problem. Retrofit a key tool to tackle.

35 Design of strategy based on BER big intervention Need to cater for as many houses as possible Focus on strategic improvement that makes difference to tenants and fuel poverty. Costed, time bound Energy Housing Upgrade Strategy Required Significant admin burden on large housing owners Tendering, even in lots Vs Framework TCC/ C2/ SSWP management. Clerk of works time to audit QA Lessons from 2010/11 Still poor standards from contractors Variation of standards employed by contractors Poor knowledge of the building regulations Workshops held with contractors before and after last year s work program -> Improved Specification

36 Learning to date IEE shelter project, TEA, SEAI & others experience ensures actions are clear. Need to think strategically, data based about implementation. Pass 1: Education, Ventilation, Insulation Pass 2: Heating Pass 3: Electricity

37 Requirements Clear identification of existing situation: How to survey cost effectively Outline required roles and assign, train or purchase: Tenant liaison, Engineer, Surveyor, Procurement / contract management, Clerk of Works/ QA, BER assessor. Accountant Treat this as a management not a technical problem.

38 Clarity for all participants Housing working group: Engineers and Clerk of Works Training for internal and external staff: Standards & QA H&S Business processes Clear standards & specifications: Local authority specifications Warmer homes Building Regulations Experience of Tipp LA s? TEA and LA Experience Documented processes and procedures.

39 TEA Solution Building Professional -BER Assessor -PI insurance -Surveyor/ Civil/ Arch.tech -PSDP Building Survey -Energy Requirements -Rented housing standards -Condition survey -Measurement List of Upgrade Requirements Housing Database Funding Availability Tenant Liaison Panel of Contractors: -Annual contractor tender -Standard specification -Schedule of rates (per meter etc) Social Housing Upgrade Management System (WEB-Based) Automatic Manageme nt of TCC/ C2 Inspection process with Building Professional QA Management of each contractor P.O. / payment admin

Stakeholder Roles Client Administrator: Managing upgrade scheme ITT,

LA Tenant Liaison officer (on site): Receiving lists from LA

System Customisation, Training, Support LASHUM S Energy Supplier (on

if req d), Post works survey & BER upload, QA of works Contractor:

orders, Issuing Declaration of works Optional Role: Building

40 Stakeholder Roles Client Administrator: Managing upgrade scheme ITT, issuing houses for upgrade, issuing task orders, approving payment LA Tenant Liaison officer (on site): Receiving lists from LA administrator, Pre works surveys (if req d), Post works QA TEA: System Customisation, Training, Support LASHUM S Energy Supplier (on site): Receiving list of houses to survey, pre works survey (& BER if req d), Post works survey & BER upload, QA of works Contractor: Upload ITT prices via template (once), Receiving & Accepting task orders, Issuing Declaration of works Optional Role: Building Professional Stand alone role to combine functions of Energy Supplier and LA Tenant Liaison

41 System Flow Chart

42 National Housing Strategy Assumption 600k fuel poor homes, Private, VHA, LA. 1 st pass: Insulation: 3,000 average/ unit: 1.8 Bn 2 nd pass: Heating system (4k/unit). 2.4 Bn 3 rd pass: PV (3.5k/ unit - 2kW) 2.1 Bn How do we fund? - EIB cheap long term loans for environmental and social benefit. - EU structural funds. - Retrofit labour = Unemployment reduction. >25% at no net cost. - Significant health and other non energy benefits - 4 bn over 20 years at EIB rate = 270M/ Annum - Fuel allowance: 210 Million per annum

43 Just an Idea Replace 35 / mth electricity benefit with 2kW PV panel + 8 per month + 19c/exported unit Balance electricity income over year. Current annual payment 420, new value 460 EIB loan repaid by state. Savings to state 65 per annum per household. 20 year social savings: 3 Bn Assumptions: 20 year loan, 4% fuel inflation, 2% payment inflation, 3% EIB loan interest over 20 years.

6 7 8 9 10 11 12 13 14 15 16 17 18 19 Cost to State

44 Just an Idea Renewables to reduce cost, fuel poverty and emissions Cost to State Current Electricity benefit New Value to Householder Cost to State

45 Tipperary Energy Agency Craft Granary Church St Cahir Co. Tipperary Ireland Paul Kenny Chief Executive T: F: E: W:

46 Energy Efficient Retrofitting Turning Policy into Practice Parallel Session 3 18 th September 2013

47 Energy Efficient Retrofitting Turning Policy into Practice Geoff Corcoran Development Manager NABCO

49 Geoff Corcoran 18 th September 2013

50 Overview - from policy to practice NABCO Co-operative Housing in Ireland Strategic approach to refurbishment Stock Inspection & Estate Selection Warmer Homes Area Based Pilot Scheme Results and Findings Next Steps

51 NABCO About us NABCO is Ireland s national federation for the cooperative housing sector. Since 1973 co-operative housing has: Supported the provision of approximately 5,000 homes across a mix of tenures, Taken responsibility for the on-going management of 1,800 homes available at affordable rents, Promoted the development of locally affiliated co-operative societies across Ireland, Provided wider community development opportunities such as Childcare and Community Services.

NABCO Strategy 2010-2015 identify local housing developments for which building stock condition surveys and subsequent project planning and appraisal may be

52 NABCO Strategy identify local housing developments for which building stock condition surveys and subsequent project planning and appraisal may be undertaken; achieve environmental and amenity improvements, where possible; promote more efficient energy usage and cost savings with reduced CO2 emissions;

53 Refurbishment and Upgrade

54 Stock Assessment Physical inspection of a minimum of 10% of existing stock Supported by quantitative data: - BER Ratings - Repair Costs - Rates of Fuel Poverty - Age of Dwellings - Member Feedback

55 Pinewood Green Court 20 Houses built in 1996 Back Boiler Heating, wooden doors and windows, exposed costal area. Members reporting drafts and water coming in under doors Inspections and on-going remedial works Rising Cost of Fuel Multi-Annual Refurbishment Plan

SEAI Pilot Scheme Pilot Scheme of funding for low income houses Targeted at fuel poverty households in receipt of fuel allowance Suite of energy

56 SEAI Pilot Scheme Pilot Scheme of funding for low income houses Targeted at fuel poverty households in receipt of fuel allowance Suite of energy improvement measures including: - Windows and Doors - Gas Boilers - Insulation Formal Approval given on the 27 th August Work to be finished 15 th November

57 Partnership SEAI - Grant Approval and monitoring Electric Ireland - Appoint contractors & manage the works - Payment for savings achieved NABCO Administration, facilitation & Co-ordination Members - End users of measures - Contribution towards costs - Monitoring

58 Refurbishment Measures Central Heating - New Gas Boilers and Heating Controls - Disable back boiler system Windows and Doors - Replace all with improved efficiency alternative - Draft Proofing Insulation - Re-insulate attic space - Pump Cavity Walls Supply low energy light bulbs

59 Monitoring Savings BER Calculations before and BER certificates after Collect Energy Bills to monitor changes in consumption rates Member carry out their own monitoring Survey all households after 12 months

60 Pinewood Green Court Results Measures Before After BER E1-D1 C1-B3 Tonnes CO2/Yr Kwh/M2/Yr

61 Pinewood Green Court Results Consumption Consumption -Jan Sept Electricity Units Electricity Cost* Heating Units ,11 Heating Cost* *Price Increase October 2012 Electric Ireland 12%, Board Gáis 8.5%

62 Pinewood Green Court Results

63 Next Steps

64 Next Steps

66 Energy Efficient Retrofitting Turning Policy into Practice Parallel Session 3 18 th September 2013

Upgrading To An A-Rated Home

Upgrading To An A-Rated Home Homeowner Guide HOW SEAI CAN HELP YOU AND YOUR HOME The Sustainable Energy Authority of Ireland (SEAI) is Ireland s national energy authority, investing in and delivering appropriate,