The Code for Sustainable Homes: Explained. Colin King BRE

Transcription

1 The Code for Sustainable Homes: Explained Colin King BRE

2 Key Aspects of the Code

3 Key Objectives of the Code As recommended by the Sustainable Buildings Task Group Bring about a step change in sustainable building practice for new homes, provides a route map to Zero Carbon dwellings Encourage home builders to construct more sustainable homes Signal the direction of future regulations

4 Minimum standards Categories Energy Efficiency Water Efficiency Materials Surface Water Run Off Waste Pollution Health & Well-Being Management Ecology Flexibility 6 levels of minimum standards one for each level of the Code Three levels of minimum standards each covering two levels of the Code A single basic standard at Code entry level No minimum standards

5 Mandatory Standards Waste Materials Water Surface Run-off Energy Potable Water Consumption Tradable Credits Energy Potable Water Consumption Waste Materials Water Surface Run-off Pollution Health & Wellbeing Management Ecology Issue Category Scores Environmental Weightings Overall Score Level 1 Level 2 Level 3 Level 4 Level 5 Level 6

6 A Two-stage Process Design Stage Based on design drawings, specifications and commitments Results in interim certificate of compliance + Post Construction Stage Based the design stage information Confirmation of compliance through site records and visual inspection Code certificate awarded based on compliance at this stage

7 Technical Content

8 Code Issue Categories Waste Energy/CO 2 Pollution Water Health & Well-being Materials Management Surface Water Runoff Ecology

9 Energy

10 Sliding scale introduced

11 Energy Ene 2 Fabric Energy Efficiency Ene 3 Smart Meters Ene 4 Drying Space

12 Energy Ene 5 Energy Labelled White Goods Ene 6 External Lighting Ene 7 Low and Zero Carbon Technologies

13 Energy Ene 8 Cycle Storage Ene 9 Home Office

14 Water

15 Water Wat 1 Internal Potable Water Mandatory

16 Water Wat 2 External Water Use

17 Materials

18 Materials Mat 1 Environmental Impact of A. Roof B. External Walls C. Internal Walls (including separating floors) D. Upper and Ground Floors (including separating floors) E. Windows Mandatory All Levels

19 Materials Mat 2 Responsible sourcing of materials Basic Building Elements Mat 3 Responsible sourcing of materials Finishing Elements

20 Surface Water Run Off

21 Surface Water Run Off Sur 1 Reduction of Surface Water Run Off from Site Mandatory All Levels Sur 2 Flood Risk

22 Mandatory requirements of the Code Ensure that run-off rates and annual volumes of run-off post development will be no greater than the previous conditions for the site. Where rainwater holding facilities/sustainable drainage systems (SUD s) are used to provide attenuation of water run-off to either natural watercourses or surface water drainage systems, providing percentage time attenuation should be provided as follows to meet the mandatory requirement or the following, whichever is greater: 50% in low flooding risk areas 75% in moderate flooding risk areas 100% in significant flooding risk areas

23 Waste

24 Waste Was 1 Household Waste Storage and Recycling Facilities Mandatory All Levels Was 2 Construction Site Waste Management Was 3 Composting

25 Mandatory Requirements for any level of the Code Waste 1 either internal recycling facilities or local authority collection scheme of required number of waste streams.

26 Pollution

27 Pollution Pol 1 Global Warming Potential (GWP) of Insulants Pol 2 NO x Emissions

28 Health and Wellbeing

29 Health & Wellbeing Hea 1 Daylighting Hea 2 Sound Insulation Hea 3 Private Space Hea 4 Lifetime Homes

30 Management

31 Management Credits Man 1 Home User Guide Man 2 Considerate Constructors Man 3 Construction Site Impacts Man 4 Security

32 Ecology

33 Ecology Eco 1 Ecological Value of Site Eco 2 Ecological Enhancement Eco 3 Protection of Ecological Features Eco 4 Change of Ecological Value of Site Eco 5 Building Footprint

34 So What Does it Look Like Anything you want it too Just a performance standard above minimums set by regulation.

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39 Questions