Code for Sustainable Homes Technical Guidance Note 002. Supplementary guidance on the Schedule of Evidence Required to Demonstrate Compliance

Transcription

1 Code for Sustainable Homes Technical Guidance Note 002 Supplementary guidance on the to Demonstrate Compliance Issued 16 December 2009 This note has been issued by BRE Global on behalf of CLG for use by providers of Code services, housing developers, consultants and assessors. Following experience from the first assessments and feedback from industry, stakeholders and assessors, BRE Global has recommended a series of amendments to streamline the complexity and volume of evidence required to demonstrate compliance with the Code for Sustainable Homes, whilst maintaining the technical rigour of the scheme. CLG has agreed to the publication of this Technical Guidance Note and its retrospective implementation against the current and all previous versions of the code as applicable. The guidance in this note takes immediate effect. This Technical Guidance Note should be read in conjunction with the relevant Technical Guide for the version of the Code being used. It has been prepared by BRE Global and CLG with the help of a technical advisory group comprised of representatives from housing developers, consultants and assessor organisations. TGN002 16/12/09

2 Table of Contents Section 1: Background : Introduction Principles... 1 Section 2: Revised Evidence Requirements : Using the : Roles and Responsibilities Role of the Code Assessor Role of the Code Service Provider Role of the Developer : Definitions of Terminology Used in the Evidence Requirements Tables Definition of developer Definition of detailed documentary evidence Site Inspection Report Written confirmation from the developer : Assessment Routes... 4 Section 3: Category 1: Energy and Carbon Dioxide Emissions : Ene 1: Dwelling Emission Rate : Ene 2: Building Fabric : Ene 3: Internal Lighting : Ene 4: Drying Space : Ene 5: Energy Labelled White Goods : Ene 6: External Lighting : Ene 7: Low or Zero Carbon (LZC) Technologies : Ene 8: Cycle Storage : Ene 9: Home Office Section 4: Category 2: Water : Wat 1: Indoor Water Use : Wat 2: External Water Use Section 5: Category 3: Materials : Mat 1: Environmental Impact of Materials : Mat 2: Responsible Sourcing of Materials Basic Building Elements : Mat 3: Responsible Sourcing of Materials Finishing Elements Section 6: Category 4: Surface Water Run-off : Sur 1: Management of Surface Water Run-off from Developments : Sur 2: Flood Risk Section 7: Waste : Was 1: Storage of non-recyclable waste and recyclable household waste : Was 2: Construction Site Waste Management : Was 3: Composting Section 8: Pollution : Pol 1: Global Warming Potential (GWP) of Insulants : Pol 2: NO x Emissions Section 9: Health and Wellbeing : Hea 1: Daylighting : Hea 2: Sound Insulation : Hea 3: Private Space : Hea 4: Lifetime Homes Section 10: Management TGN002 16/12/09

3 10.1: Man 1: Home User Guide : Man 2: Considerate Constructors Scheme : Man 3: Construction Site Impacts : Man 4: Security Section 11: Ecology Eco 1: Ecological Value of Site : Eco 2: Ecological Enhancement : Eco 3: Protection of Ecological Features : Eco 4: Change in Ecological Value of the Site : Eco 5: Building Footprint TGN002 16/12/09

4 Section 1: Background 1.1: Introduction Collating evidence contributes significantly to the time taken to complete the Code certification process. A stakeholder working group was established in 2009 and tasked with addressing the complexity and volume of evidence required to certify a dwelling against the Code for Sustainable Homes. This document details the recommendations of the group through a number of changes to the Schedule of Evidence Required for each Code issue. 1.2 Principles The following key principles were followed in the development of revised evidence requirements: 1. Technically Robust Evidence: The evidence being required to demonstrate compliance will be sufficient to robustly demonstrate compliance with the technical criteria to enable assessment and certification. 2. Auditable Evidence: The evidence requirements will make clear what information is required by the scheme operator for certification purposes. The assessor will be required to identify and reference this evidence recording where, by whom and in what form information is provided to ensure that evidence auditing can be carried out in future. 3. Clear lines of responsibility: It will be clear from the list of evidence requirements who holds responsibility for providing relevant and accurate information. For example, Code assessors will be responsible for completing calculator tools correctly. 4. Supply of minimum information: It is the intent that all evidence should only be provided once during a Code assessment. This can be either at dwelling, house type or site level. 5. Flexibility: Enable the greatest amount of flexibility for assessment and compliance that is appropriate. 6. Evidence to demonstrate compliance: The intention of this revision of evidence requirements is to set out the evidence that will be required for certification purposes. The assessor will require additional information to allow them to carry out their assessment. TGN002 14/12/09 Page 1 of 51

5 Section 2: Revised Evidence Requirements A significant number of changes have been made to the Schedule of Evidence Required tables for each Code Issue. The information within this section will clarify how the tables should be used, the roles and responsibilities of individuals involved and provides definitions of terminology used within the tables. Clarification of the routes to certification has also been provided to emphasise the importance of the assessment. 2.1: Using the The lists the basic information that is needed to demonstrate compliance for certification purposes. They are not exhaustive lists of every document necessary to conduct the assessment or calculate performance. As an example, SAP worksheets are not required as evidence for Issue Ene 1, but will be needed to complete calculations. Assessors will need to consider what information to request during the assessment in order enable them to fulfil the requirement for an audit trail to be created. 2.2: Roles and Responsibilities Role of the Code Assessor The role of the Code assessor is to undertake credit score calculations and verify the validity and authenticity of evidence provided. The assessor will also carry out calculations which are only pertinent to the Code assessment, where these are not undertaken by a professional under an appropriate regulatory requirement, competent person scheme or specialist requirement. At the the assessor is required to carry out sufficient site inspections to audit the as-built evidence. At least one visit will be required for all sites. Each specification employed to meet the criteria at the and/or must be reviewed or assessed as appropriate and detailed documentary evidence recorded, to confirm that it complies with the requirements for Post Construction Assessment given in the Technical Guidance. The Code assessor is at all times responsible for the content and scoring within the assessment report. It may be that assessors have competencies in other disciplines and as such are employed to undertake additional tasks that feed into the Code assessment, but these fall outside their role as an assessor Role of the Code Service Provider The Code Service Provider operates the UKAS Accredited Product Scheme for the Code with the purpose of ensuring that assessors are technically competent, accurate and professional when carrying out CSH assessment services on behalf of their clients. The service provider will audit assessment services for quality assurance (QA) purposes. The QA process is in place to help protect both the TGN002 14/12/09 Page 2 of 51

6 credibility of the CSH scheme and the assessor, as well as to safe guard the interests of developers and their customers Role of the Developer The developer is responsible for providing accurate evidence as required by the assessor to carry out their assessment. At, the developer must confirm which dwellings are built to the same specification as those types inspected by the assessor on site (as described in section 2.4.4). At where written confirmation from the developer is provided, this must be in the form of a letter on company headed paper and must be signed by a senior individual who is deemed responsible for the development by the board of directors or equivalent senior management group of that developer. The letter must refer to specific criteria within the Issues and explain how the criteria or design stage commitment have been satisfied. The letter must be explicit in terms of the assessment and the site under development. The letter must confirm which dwellings are built to the same specification as those types inspected by the assessor on site (as described in section 2.3.4). 2.3: Definitions of Terminology Used in the Evidence Requirements Tables Definition of developer An organisation or individual(s) with the responsibility for delivering the dwelling being assessed Definition of detailed documentary evidence Detailed documentary evidence may be any written documentation confirming compliance. Across the assessment, evidence will include a mix of letters, the site inspection report, specification text or drawings as appropriate. The assessor must satisfy themselves that the evidence is robust and traceable. Although a letter of intent from the developer is acceptable in certain circumstances at the (as specified in the applicable tables) it is not acceptable to provide one where the requirement is for detailed documentary evidence Site Inspection Report Assessors may ask others to complete the site inspection on their behalf. If so, it is the responsibility of the assessor to ensure that their representative is competent and able to carry out the task. During the site inspection an attempt should be made to check as many Issues as possible. However it is unlikely that all issues could be checked during one site visit. Different specifications of the dwelling will be completed at different times therefore the site inspection will need to be planned in discussion with the client to identify when would be most appropriate. At least one site visit must be carried out for every assessment. TGN002 14/12/09 Page 3 of 51

7 In many cases the proposed changes to the evidence requirements place an emphasis on the ability to demonstrate compliance at using a Site Inspection Report. For some Issues it is possible to demonstrate compliance using the report as the sole piece of evidence therefore, it is essential that the report provided is robust and contains sufficient information to enable certification. A number of Site Inspection Report Templates are therefore being drafted to outline the checks assessors must undertake when verifying performance against Code Issues on site. This will assist in standardising the site inspection process, helping assessors to confirm the correct details efficiently and consistently. The templates, which will be made available to all Code assessors shortly, are being produced by BRE Global on behalf of CLG in partnership with a technical advisory group made up of housing developers, assessor organisations and consultants. Whilst we are providing a streamlined and cost effective model for performing Post Construction stage site inspections, an emphasis upon the value of assessments in embedding sustainability at the early stages of a project will remain. A streamlined evidence schedule will reduce the burden faced by project teams and support the continuing value of this stage in setting a trajectory towards good performance at the Written confirmation from the developer At, where written confirmation from the developer is provided, this must be in the form of a letter on headed paper and must be signed by a senior individual who is deemed responsible for the development by the board of directors (or equivalent senior management group) of the developer concerned. The letter must refer to specific criteria within the Issues and explain how the criteria or design stage commitments have been satisfied. The letter must be explicit in terms of the assessment and the site under development. 2.4: Assessment Routes There are two routes to certification; 1. Complete both the (DS) Assessment and the Post Construction Stage (PCS) Assessment. An Interim Certificate will be issued based on DS evidence, followed by the Final Certificate based on PCS evidence. 2. Complete the (PCS) Assessment only. Only the Final Certificate, based on PCS evidence, will be issued. QA audits will cover both the DS and PCS assessments. Assessors must be aware of the pros and cons of either route to certification and advise their clients accordingly. Completing both the DS and PCS assessments should be the preferred route to certification as it offers two significant benefits. Firstly, where DS assessments have been carried out and the requirements have been fulfilled, the subsequent PCS assessment report should take less time to complete and to progress through the certification process. This is of significant TGN002 14/12/09 Page 4 of 51

8 benefit to the client who is likely to need the Final Certificate as soon as the dwellings are complete. Secondly, completing the DS assessment will help to identify opportunities for redesign in order to maximise the number of credits achieved. At the DS it is much easier to alter designs than at PCS when some of the dwellings may already have been built. Any pre-assessment estimate of the rating a dwelling may achieve should be informed by a licensed Code assessor who understands the full details of the process where this is used to inform business, funding or contractual decisions. TGN002 14/12/09 Page 5 of 51

9 Section 3: Category 1: Energy and Carbon Dioxide Emissions 3.1: Ene 1: Dwelling Emission Rate Copy of calculations as detailed in the methodology (e.g. Code Energy Calculator Tool) based on SAP 2005 Worksheets*, including: Where Energy Grouping procedure used: the percentage improvement of the Dwelling Emission Rate below the Target Emission Rate for each Energy Group, based on SAP 2005 Worksheets* Revised/final calculations as detailed in methodology, based on As Built SAP 2005 Worksheets* * The worksheets must be prepared by an Accredited Energy Assessor. For levels 1-5 use, As Built SAP 2005 DER Worksheets. For level 6, use As Built SAP 2005 Worksheets * The worksheets must be prepared by an Accredited Energy Assessor. For levels 1-5 use, SAP 2005 DER Worksheets. For level 6, use SAP 2005 Worksheets Confirmation that LZCs will be installed in accordance with all requirements. Confirmation that LZCs have been installed in accordance with all requirements. TGN002 14/12/09 Page 6 of 51

10 3.2: Ene 2: Building Fabric Copy of calculations as detailed in the methodology (e.g. Code Energy Calculator Tool) based on SAP 2005 Worksheets* * The worksheets must be prepared by an Accredited Energy Assessor. A letter from the accredited energy assessor containing the HLP values taken from the SAP 2005 Worksheet for all dwellings Revised/final calculations as detailed in the methodology (e.g. Code Energy Calculator Tool) based on As Built SAP 2005 Worksheets* A letter from the accredited energy assessor containing the HLP values taken from the As Built SAP 2005 Worksheets* for all dwellings * The worksheets must be prepared by an Accredited Energy Assessor. TGN002 14/12/09 Page 7 of 51

11 3.3: Ene 3: Internal Lighting Calculation of the percentage of dedicated energy efficient light fittings in dwelling AND Detailed documentary evidence indicating the types of light fittings and efficacy, in lumens per circuit watt, for all lamps AND Detailed documentary evidence clearly indicating the location of all light fittings in all habitable rooms Where details of light fittings are not available at this stage; A letter of instruction to a contractor/supplier or a formal letter from the developer giving the specific undertaking Where assessment only, provide calculations and detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the light fittings have been installed as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide calculations and detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide revised calculations and detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 8 of 51

12 3.4: Ene 4: Drying Space For internal drying space, detailed documentary evidence confirming: Location of drying fixings Details/location of ventilation provided The length of drying line For external drying space, detailed documentary evidence confirming: Location of fixings/footings or posts The length of drying line Where detailed documentary evidence cannot be produced at this stage; A specification can be allowed as evidence of intent to meet specific requirements A letter of instruction to a contractor/supplier or a formal letter from the developer giving the specific undertaking Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the fittings have been installed as specified in the detailed documentary evidence Where only a specification/letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 9 of 51

13 3.5: Ene 5: Energy Labelled White Goods If any white goods are to be provided, detailed documentary evidence confirming: The appliances to be provided with their applicable ratings under the EU Energy Efficiency Labelling Scheme Where washer dryers or tumble dryers will not be provided and the second credit is sought provide detailed documentary evidence as follows: A copy of the information that will be provided on the EU Energy Efficiency Labelling Scheme AND Confirmation that leaflets are going to be provided to all dwellings If no white goods are provided, detailed documentary evidence as follows: A copy of the information that will be provided on the EU Energy Efficiency Labelling Scheme Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the appliances/fittings have been installed as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built AND Confirmation that leaflets are going to be provided to all dwellings Where details cannot be produced at this stage; A formal letter from the developer giving the specific undertaking TGN002 14/12/09 Page 10 of 51

14 3.6: Ene 6: External Lighting Relevant drawings clearly showing location of all external light fittings AND Detailed documentary evidence confirming the types of light fittings and efficacy, in lumens per circuit watt, for all lamps. Where detailed information is not available at this stage; A letter of instruction to a contractor/supplier or a formal letter from the developer giving the specific undertaking Where assessment only, provide drawings and detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the external light fittings have been installed as specified in drawings and the detailed documentary evidence Where only a letter of instruction is provided at provide calculations and detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide revised drawings and detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 11 of 51

15 3.7: Ene 7: Low or Zero Carbon (LZC) Technologies Written confirmation from the funding body that the specified LZC energy source(s) will be funded by the Low Carbon Buildings Programme (or similar) Confirmation that a compliant feasibility study has been carried out by an independent energy specialist Copy of calculations as detailed in the methodology (e.g. Code energy calculator tool) based on SAP 2005 DER Worksheets* * The worksheets must be prepared by an Accredited Energy Assessor. Confirmation that the specified LZC energy source(s) has been funded under the Low Carbon Buildings Programme (or similar). Confirmation that the design has been carried out and installed as recommended in the feasibility study prepared by an independent energy specialist. Revised/final calculations as detailed in the methodology (e.g. Code energy calculator tool) based on As Built SAP 2005 DER Worksheets* * The worksheets must be prepared by an Accredited Energy Assessor. Where detailed calculations are not available at this stage, the performance specification can be allowed as evidence of intent. Confirmation that LZCs will be installed in accordance with all requirements. Confirmation that LZCs have been installed in accordance with all requirements. TGN002 14/12/09 Page 12 of 51

16 3.8: Ene 8: Cycle Storage Detailed documentary evidence showing; The number of bedrooms and the corresponding number of cycle storage spaces per dwelling Location, type and size of storage Convenient access to cycle storage Any security measures Details of the proprietary system (if applicable) Where detailed information is not available at this stage; A letter of instruction to a contractor/supplier or a formal letter from the developer giving the specific undertaking Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the cycle storage facilities have been installed as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 13 of 51

17 3.9: Ene 9: Home Office Detailed documentary evidence showing: Location of and sufficient space for the home office Location and number of sockets Location of telephone points That adequate ventilation will be provided That a daylight factor of at least 1.5% is achieved Confirmation of one of the following: - cable connection - that broadband is available at the site level (not for individual dwellings) i.e. a letter from the developer confirming that they have checked that broadband is available - two telephone points (or double telephone point) Where detailed information is not available at this stage; A letter of instruction to a contractor / supplier or a formal letter from the developer giving the specific undertaking. Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the home office and related services have been provided as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 14 of 51

18 Section 4: Category 2: Water 4.1: Wat 1: Indoor Water Use Completed Water Efficiency Calculator for New Dwellings internal potable water use for each dwelling which has a different specification AND Detailed documentary evidence showing: Location, details and type of appliances/ fittings that use water in the dwelling including any specific water reduction equipment with the capacity / flow rate of equipment. Location, size and details of any rainwater and greywater collection systems provided for use in the dwelling Where assessment only, provide Water Efficiency Calculator for New Dwellings and detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the appliances/fittings have been installed as specified in the detailed documentary evidence Where only a letter of instruction is provided with calculations at provide revised calculations and detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide revised Water Efficiency Calculator for New Dwellings and detailed documentary evidence (as listed for ) representing the dwellings as built Where detailed documentary evidence is not available at this stage; Completed Water Efficiency Calculator for New Dwellings internal potable water use for each dwelling which has a different specification AND TGN002 14/12/09 Page 15 of 51

19 A letter of instruction to a contractor/ supplier or a formal letter from the developer giving a specific undertaking, providing sufficient information to allow the water calculations to be completed TGN002 14/12/09 Page 16 of 51

20 4.2: Wat 2: External Water Use Detailed documentary evidence stating type, size and location of any rainwater collection systems Where detailed documentary evidence is not available; A letter of instruction to a contractor / supplier or a formal letter from the developer giving a specific undertaking Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the rainwater collection system has been installed as specified in the Design Stage detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 17 of 51

21 Section 5: Category 3: Materials 5.1: Mat 1: Environmental Impact of Materials Completed Code Mat 1 Calculator Tool, showing building elements at the design stage with the relevant Green Guide element numbers AND References stating the design or specification documentation used to complete the tool Where assessment only, provide; The Code Mat 1 Calculator Tool, showing building elements as built with the relevant Green Guide element numbers References stating the source of data used to complete the tool Written confirmation from the developer that the building envelope has been constructed as specified in the Mat 1 Calculator Tool and references provided at Where different from, provide; The revised Code Mat 1 Calculator Tool, showing building elements as built with the relevant Green Guide element numbers Revised references stating the source of data used to complete the tool TGN002 14/12/09 Page 18 of 51

22 5.2: Mat 2: Responsible Sourcing of Materials Basic Building Elements Completed Code Mat 2 Calculator Tool, showing building elements at the design stage AND Detailed documentary evidence stating the materials specified in each element Where assessment only, provide Code Mat 2 Calculator Tool and detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the materials specified in the Code Mat 2 Calculator Tool and the detailed documentary evidence provided at Design Stage have been used as specified Where different from, provide revised Code Mat 2 Calculator Tool and detailed documentary evidence (as listed for ) representing the dwellings as built Where materials are re-used the following evidence will be required: Documentation* stating specific materials to be re-used *Supplier information or a letter from the developer is acceptable Where materials were re-used the following evidence will be required: Documentation* demonstrating which particular materials have been re-used *A receipt or letter from the supplier, which includes material quantities, is acceptable Where materials are recycled the following evidence will be required: Documentation stating specific recycled materials AND A letter of intent to use suppliers who can provide an EMS certificate (or equivalent) for the recycling process Where materials were recycled the following evidence will be required: Documentation stating the particular recycled materials used in the development AND Documentary evidence confirming the key process is certified by EMS TGN002 14/12/09 Page 19 of 51

23 Where certified materials will be used following evidence will be required: A letter of intent from the developer or other detailed documentary evidence confirming the product shall be sourced from suppliers capable of providing certification to the level required for the particular tier claimed. Where certified materials were used the following evidence will be required (where applicable): All relevant certificates A copy of the relevant certificate(s) as appropriate; A copy of the timber scheme certificate (including CoC) BES6001 certificate (or compliant sector standard certificate) EMAS certificate ISO14001 certificate. For small companies, (see Relevant Definitions) confirmation that the company EMS is structured in compliance with BS (or equivalent) and the EMS has completed phase audits one to four as outlined in BS This can be found in company documentation demonstrating the process and typical outputs from phase four audits such as an EMS manual/ paperwork and guidance to staff. Where independent certification exists to demonstrate these phases, it can be used as evidence Green Dragon Environmental Standard 2006 (Safon Amgylcheddol Y Ddraig Werdd ) completed up to and including Level 4. Confirmation is taken from a Green Dragon Standard certificate stating the company s achievement of Level 4. As company s achieving Level 4 will normally be required to undertake annual audits, this certification should be dated within 1 year at the point of the last purchase made from the company. For smaller companies with low environmental impacts, a renewal date of within 2 years is acceptable. TGN002 14/12/09 Page 20 of 51

24 Where any non-certified timber is used, written confirmation from the supplier/s confirming that: All timber will come from a legal source All timber species and sources to be used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III*). * Or in the case of Appendix III of the CITES list, it will not be sourced from the country seeking to protect this species as listed in Appendix III. Where any non-certified timber is used, written confirmation from the supplier(s) confirming that: All timber comes from a legal source. All timber species and sources used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III*). * Or in the case of Appendix III of the CITES list, it has not been sourced from the country seeking to protect this species as listed in Appendix III. Where any non-certified timber is used, written confirmation from the supplier/s confirming that: All timber comes from a legal source All timber species and sources used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III) Or in the case of Appendix III of the CITES list, it has not been sourced from the country seeking to protect this species as listed in Appendix III. TGN002 14/12/09 Page 21 of 51

25 5.3: Mat 3: Responsible Sourcing of Materials Finishing Elements Completed Code Mat 3 Calculator Tool, showing building elements at the design stage AND Detailed documentary evidence stating the materials specified in each element Where assessment only, provide Code Mat 3 Calculator Tool and detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the materials specified in the Code Mat 3 Calculator Tool and the detailed documentary evidence provided at Design Stage have been used as specified Where different from, provide revised Code Mat 3 Calculator Tool and detailed documentary evidence (as listed for ) representing the dwellings as built Where materials are re-used the following evidence will be required: Documentation* stating specific materials to be re-used *Supplier information or a letter from the developer is acceptable Where materials were re-used the following evidence will be required: Documentation* demonstrating which particular materials have been re-used *A receipt or letter from the supplier, which includes material quantities, is acceptable Where materials are recycled the following evidence will be required: Documentation stating specific recycled materials AND A letter of intent to use suppliers who can provide an EMS certificate (or equivalent) for the recycling process Where materials were recycled the following evidence will be required: Documentation stating the particular recycled materials used in the development AND Documentary evidence confirming the key process is certified by EMS TGN002 14/12/09 Page 22 of 51

26 Where certified materials will be used following evidence will be required: A letter of intent from the developer or other detailed documentary evidence confirming the product shall be sourced from suppliers capable of providing certification to the level required for the particular tier claimed. Where certified materials were used the following evidence will be required (where applicable): All relevant certificates A copy of the relevant certificate(s) as appropriate; A copy of the timber scheme certificate (including CoC) BES6001 certificate (or compliant sector standard certificate) EMAS certificate ISO14001 certificate. For small companies, (see Relevant Definitions) confirmation that the company EMS is structured in compliance with BS (or equivalent) and the EMS has completed phase audits one to four as outlined in BS This can be found in company documentation demonstrating the process and typical outputs from phase four audits such as an EMS manual/ paperwork and guidance to staff. Where independent certification exists to demonstrate these phases, it can be used as evidence Green Dragon Environmental Standard 2006 (Safon Amgylcheddol Y Ddraig Werdd ) completed up to and including Level 4. Confirmation is taken from a Green Dragon Standard certificate stating the company s achievement of Level 4. As company s achieving Level 4 will normally be required to undertake annual audits, this certification should be dated within 1 year at the point of the last purchase made from the company. For smaller companies with low environmental impacts, a renewal date of within 2 years is acceptable. TGN002 14/12/09 Page 23 of 51

27 Where any non-certified timber is used, written confirmation from the supplier/s confirming that: All timber will come from a legal source All timber species and sources to be used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III*). * Or in the case of Appendix III of the CITES list, it will not be sourced from the country seeking to protect this species as listed in Appendix III. Where any non-certified timber is used, written confirmation from the supplier(s) confirming that: All timber comes from a legal source. All timber species and sources used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III*). * Or in the case of Appendix III of the CITES list, it has not been sourced from the country seeking to protect this species as listed in Appendix III. Where any non-certified timber is used, written confirmation from the supplier/s confirming that: All timber comes from a legal source All timber species and sources used in the development are not listed on any of the CITES appendices for endangered or threatened species (Appendix I, II, or III) Or in the case of Appendix III of the CITES list, it has not been sourced from the country seeking to protect this species as listed in Appendix III. TGN002 14/12/09 Page 24 of 51

28 Section 6: Category 4: Surface Water Run-off 6.1: Sur 1: Management of Surface Water Run-off from Developments There are no changes proposed to the for Issue Sur 1: Management of Surface Water Run-off from Developments. Technical Guidance Note 002 concerning the assessment criteria for this issue was published on XX. As well as providing guidance on the assessment criteria for this issue, the guidance note will also address any impacts on the Schedule of Evidence Required to demonstrate compliance with this Issue. TGN002 14/12/09 Page 25 of 51

29 6.2: Sur 2: Flood Risk For developments situated in Zone 1: A Flood Risk Assessment (prepared according to good practice guidance as outlined in PPS25 Development and Flood Risk) which shows that there is a low risk of flooding from all sources. Written confirmation from the developer that the evidence submitted at the design stage has not changed Where different from the design stage, provide evidence (as listed for the design stage) representing the dwellings as built Where post construction stage assessment only, provide evidence (as listed for the design stage) representing the dwellings as built. For medium (Zone 2) or high (Zone 3a) flood risk areas: A Flood Risk Assessment (prepared according to good practice guidance as outlined in PPS25 Development and Flood Risk) which shows there is a medium or high risk of flooding AND Site plans indicating the design flood level, the range of ground levels of the dwellings, car parking areas and site access (lowest to highest), showing that the criteria (finished floor levels of all habitable rooms and access routes being at least 600 mm above the design flood level) are met, along with any notes explaining the function of any areas lying below the design flood level AND Confirmation from the local planning authority that the development complies with PPS25 and is appropriately flood resilient and resistant, and has managed any residual risk safely. Where more than five years have passed since the Flood Risk Assessment was carried out: Confirmation that the basis of the Flood Risk Assessment has not changed. TGN002 14/12/09 Page 26 of 51

30 Where the site is under the protection of flood defences and the flood risk category of the site is reduced: Written confirmation from the Environment Agency of the reduction in flood risk category *. *Note: There are many defences, owned by third parties, which, owing to their location, act as a defence by default, e.g. motorway and railway embankments, walls. Confirmation is required that these defences will remain in place for the lifetime of the development if a significant risk is predicted. TGN002 14/12/09 Page 27 of 51

31 Section 7: Waste 7.1: Was 1: Storage of non-recyclable waste and recyclable household waste Mandatory element: Provide Table: Cat 5.1 Supplementary Information Sheet for Was 1 and Checklist Was 1 Mandatory element: Where assessment only, provide Table: Cat 5.1 Supplementary Information Sheet for Was 1 and Checklist Was 1 (as listed for Design Stage) representing the dwellings as built Written confirmation from the developer that the dwelling has been constructed in accordance with the evidence provided at and that the services outlined at will be provided Where 2 credits are sought: Detailed documentary evidence stating: the location of internal storage the types and sizes of internal storage Where 2 or 4 credits are sought: Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built TGN002 14/12/09 Page 28 of 51

32 Where 4 credits are sought: Detailed documentary evidence stating: the location of internal and external storage the types and sizes of internal and external storage written justification where it has not been possible to locate bins within 30m of an external door (where applicable). AND A letter, leaflet, website or other published information from the Local Authority/waste scheme provider* describing; the types of waste collected Written confirmation from the developer that the dwelling has been constructed in accordance with the evidence provided at and that the services outlined at will be provided Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance the frequency of collection if there will be pre or post collection sorting *In the case of an automated collection system, the waste scheme operator will only need to confirm the types of waste collected and if there will be pre or post collection sorting TGN002 14/12/09 Page 29 of 51

33 7.2: Was 2: Construction Site Waste Management Mandatory Element: A letter from the developer confirming that a Site Waste Management Plan has been / will be developed in accordance with Checklist Was 2a Where construction costs is less than 300,000, written confirmation from the developer of the projected cost of the development Mandatory Element: A letter from the developer confirming that a Site Waste Management Plan has been developed in accordance with Checklist Was 2a Where construction costs is less than 300,000, documentary legal evidence confirming the agreed cost of the development Note: The mandatory element of this issue goes beyond the legislative requirements for SWMPs Where tradable credits are sought; Confirmation from the developer that the Site Waste Management Plan includes/will include procedures and commitments for reducing waste in line with Checklist Was 2b and Checklist Was 2d AND/ Confirmation from the developer that the Site Waste Management Plan includes/will include procedures and commitments for diverting waste from landfill in line with Checklist Was 2c and Was 2d Note: Where tradable credits are sought a SWMP is required regardless of the construction costs of the project. Where tradable credits are sought; Where assessment only, confirmation that the Site Waste Management Plan implemented meets the criteria Confirmation from the developer that no details specified in the Site Waste Management Plan have changed from the evidence provided at Where different from design stage, provide confirmation from the developer that the Site Waste Management Plan implemented meets the criteria TGN002 14/12/09 Page 30 of 51

34 7.3: Was 3: Composting Detailed documentary evidence stating: the location and size of internal and external storage that an information leaflet will be Supplied Completed Checklist Was 1 demonstrating access to external facility For communal/community composting schemes, detailed documentary evidence stating; distance of storage from dwelling management arrangements location and size of storage details of the scheme including opening times and access restrictions confirmation that an information leaflet will be supplied Completed Checklist Was 1 demonstrating access to external facility Where post construction stage assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Confirmation that the composting solution has been implemented demonstrated by: A letter from the developer confirming that the composting facility specified at Design Stage has been provided Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from design stage, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 31 of 51

35 Where applicable, detailed documentary evidence stating: A copy of the composting information leaflet Details of the Local Authority kitchen waste collection scheme Details of the automated waste collection system Where detailed documentary evidence is not available at this stage; A letter of instruction to a contractor/supplier, a formal letter from the developer giving the specific undertaking or the manufacturer s information, for all the above required details. TGN002 14/12/09 Page 32 of 51

36 Section 8: Pollution 8.1: Pol 1: Global Warming Potential (GWP) of Insulants Completed Checklist Pol 1 showing the proposed insulation materials (or none) for each element and whether they are foamed using blowing agents or are unfoamed (from Table 6.1) Where assessment only, completed Checklist Pol 1 showing the proposed insulation materials (or none) for each element and whether they are foamed using blowing agents or are unfoamed (from Table 6.1) Written confirmation from the developer that all insulants are as specified at Design Stage Where different from, completed Checklist Pol 1 showing the proposed insulation materials (or none) for each element and whether they are foamed using blowing agents or are unfoamed (from Table 6.1) TGN002 14/12/09 Page 33 of 51

37 8.2: Pol 2: NO x Emissions Detailed documentary evidence describing: the primary and any secondary heating systems and flue type dry NO X levels and/or boiler class of the primary and any secondary heating systems Where NO X averaging is required due to multiple heating systems within the dwelling, detailed documentary evidence: Copy of calculations as detailed in the methodology Where detailed documentary evidence is not available at this stage; A letter of instruction to a contractor/supplier or a formal letter from the developer to the Code assessor giving the specific undertaking Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that heating systems have been installed as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence and NO X averaging calculations (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 34 of 51

38 Section 9: Health and Wellbeing 9.1: Hea 1: Daylighting Calculations signed-off by the developer to demonstrate: Average daylight factor using the formula provided in the Relevant Definition section (method described in Littlefair (1998) as set out in BS ) or computer simulation or scale model measurements Position of the no-sky line and percentage of area of the working plane that receives direct light from the sky Where assessment only, calculations (as listed for ) representing the dwellings as built or on-site measurements as below A letter from the developer confirming that the dwellings have been built as detailed at Where different from, calculations verified by the developer for all dwellings as built On-site measurements (methodology detailed in BRE IP 23/93) in the same rooms assessed at design stage (required when scale model measurements were carried out at ) TGN002 14/12/09 Page 35 of 51

39 9.2: Hea 2: Sound Insulation Where pre-completion testing will be carried out; A letter from the developer confirming the intent to; Meet the relevant sound insulation performance levels Use a Compliant Test Body to complete testing Where pre-completion testing has been carried out: Copies of the sound insulation field test results and/or a letter of confirmation that the required sound insulation performance standards as detailed in the assessment criteria have been achieved. Evidence that the tests have been carried out by a Compliant Test Body Where Robust Details will be used; Confirmation that the Robust Details chosen will achieve the required performance standards for sound insulation (as applicable) Where Robust Details have been used: Completed Robust Details Ltd Compliance Certificate signed by the developer for all relevant constructions relating to the plots being assessed Confirmation that the relevant plots are registered with RDL (the Purchase Statement) TGN002 14/12/09 Page 36 of 51

40 9.3: Hea 3: Private Space Detailed documentary evidence confirming: The number of bedrooms served by the outdoor space That the outdoor space meets the minimum size requirements and is located adjacent/close to the dwelling That the outdoor space complies with the relevant sections of BS8300 Where a shared outdoor space is provided, detailed documentary evidence demonstrating: Arrangements in place to the private space is accessible only to occupants of Designated dwellings Where detailed documentary evidence is not available at this stage; A letter of instruction to a contractor/supplier or a formal letter from the developer to the assessor giving a specific undertaking Where assessment only, provide detailed documentary evidence (as listed for ) representing the dwellings as built Written confirmation from the developer that the dwellings have been constructed as specified in the detailed documentary evidence Where only a letter of instruction is provided at provide detailed documentary evidence (as listed for ) representing the dwellings as built Where different from, provide detailed documentary evidence (as listed for ) representing the dwellings as built Site Inspection Report confirming compliance TGN002 14/12/09 Page 37 of 51