Energy Efficiency Measure Guidance PAS2030: A Dunn

Transcription

1 Energy Efficiency Measure Guidance PAS2030: 2017 A Dunn

2 Agenda Introduction Why has PAS 2030 come about? Andrew Dunn Each Home Counts Review Andrew Dunn An overview of PAS2030 Andrew Dunn Ventilation Requirements Kassie Williams Handover Documents Kassie Williams ECO 2T Funding Summary Andrew Dunn Any Questions

3 Each Home Counts Report

4 Each Home Counts Report Chair's Foreword Worst of all, and despite the good intentions of the Government and activities of responsible companies, there have been too many instances of poor quality installations being made by companies who do not have the skills, quality levels or core values required to operate responsibly in this market. An example of this was highlighted in a review2 by Peter Hansford, former Government Chief Construction Adviser, which focused on solid wall insulation installations and informed this Review. In my response, my Review seeks to ensure that, in the future, conventional measures, such as insulation, always deliver the quality levels and outcomes that consumers have every right to expect, underpinned by the protection, service and advice so critical for householders. It also seeks to ensure that new opportunities offered through the roll-out of smart meters and other energy efficiency and renewable energy measures fulfil their potential in a way that informs and protects householders.

5 Each Home Counts Report

6 Each Home Counts Report

7 Each Home Counts Report PROGRESS SO FAR Create a quality Mark Letters of support from Industry Revision of PAS 2030 & PAS 2031 Implementation Board in place and informal industry groups being established Solid Wall Insulation Industry Guidance TO NAME BUT A FEW!

8 What does PAS2030 focus on?

9 PAS 2030: 2017 An holistic approach, mandating design, specification, assessment, and installation competency.

10 PAS 2030: 2017

11 PAS 2030: 2017 Contents Annex A Relationship between measures in the same building Annex B, C & D Specific requirements relating to particular energy efficiency measures for application by installers Annex E Identifies the points of substantive change between PAS2030: 2014 and PAS2030 : 2017 Annex F Sets out guidance on the use and application of PAS2030: 2017 Annex G Example Installation project information collation form(s)

12 Cold-Bridging Standard Traffic Light details provided by industry

13 Cold-Bridging Example Plinth detail

14 Cold-Bridging Example Plinth detail

15 Cold-Bridging Example Plinth detail

16 PAS2030 & Ventilation Guidance K.Williams

17 PAS2030 Why is Ventilation so important now? when houses have coped for so many years without it PAS2030 The importance of ventilation - what does the new 2017 document recommend What type of Energy Efficiency Measures, affect the Ventilation?

18 PAS Why Ventilate now? In the past, traditional buildings achieved a 'healthy moisture and ventilation performance, open fireplaces played a big role. A constant, vigorous draught (all year round, but especially when the fire was lit), will have removed moisture, and created a healthy home.

19 An example of Todays homes Current grant schemes and building works to save energy and reduce gaps in properties lower fuel bills & save money Loft Insulation Double Glazing Cavity Wall Insulation All of the above measures reduce air leakage

20 Most Common examples we see of Dew Points & Condensation Windows are natural cold spots and can be a good indicators of future condensation problems in a property.

21 Examples of condensation Condensation and mould growth examples within people homes

22 4.2.5 Minimum acceptable ventilation requirements Table A.6 Minimum levels of extract and supply ventilation when continuous extraction is used NOTE 1 to Table A.6: Each habitable rom should be provided with minimum background ventilation of 3125 mm2 free area. NOTE 2 to Table A.6: Where the window opening size is 10% of the floor area of the WC and is relied upon to provide extract ventilation then this should not be included in the sum of total extraction rate calculation.

23 PAS2030 Summary If the air permeability is less than 5m3/(h.m2) we recommend PIV is included to meet PAS2030 designs (E.G if EWI is used we assume air tightness is less than 5m3/(h.m2)) Contractors must be given a full ventilation design before works commence. Ventilation specific designs must be considered when an Energy efficiency measure reduces the air tightness of the building. Example measures include the following; External Wall Insulation Draught Proofing New windows or Doors New roofs Internal Solid wall Insulation Cavity Wall Insulation

24 ECO 2T Ofgem e-serve: Energy Company Obligation (ECO 2t). Key changes from ECO 2; 18 months (1st April 2017 to 1st October 2018) Deemed carbon Increase in Enhanced compliance e.g. GPS time stamped photographs Mandatory minimum technical monitoring rates/frequency Evidence of POMI/POPT i.e. proportion of the property treated with EEM Evidence of suitability of design

25 Tips for ECO project Success Try and provide as much Information upfront to consultants and/or the industry specialists. Ask yourself, have we covered every criteria to everyone's requirements, avoid anything being refereed back to design stage and holding up works. If you are unsure on any design aspect.. ASK QUESTIONS! People will be happy to provide help within that relevant industry. Thank you for listening Any Questions?