1. Improving Quality – Changing the Development Process Richard John, NEF
Thank you for the introduction
One of the big shifts over the last ten years has been how energy supply and demand have moved from being separate to increasingly linked.
A big driver has been the uptake of renewable energy sources.
Energy from waste or bio-crops can be stand alone, or can provide heat and electricity to buildings – combined heat and power.
Building integrated renewables – like PV.
This is all great.
Most of you will have heard about VW scandal, and diesel NOx and particulate emissions
Building performance gap?
Energy from a demand perspective – headline in practice independent studies find that buildings use about twice as much energy as they should do. And its not just energy / carbon
Delivering what’s been promised

2. Quality

3. Construction Process

4. Oxgangs School

5. Grenfell Tower

6. Environmental Performance Gap
Energy / carbon x2 (source: Innovate UK)
Indoor air quality – 96% new homes don’t meet minimum standards (source: DCLG)
Overheating an increasing risk (source: CIBSE; Zero Carbon Hub)

7. Energy / Carbon

8. The Devils in the Detail……..
Non-compliant heating controls
Non-compliant heating controls
Loft hatch air leakage
Insufficient depth of loft insulation (150 v 300mm)
Just six examples (controls twice). Come back to things that worked well and didn’t – later. Key message here is that that there are many things which don’t work well in buildings, sometimes they make a huge contribution to the performance gap. Sometimes they don’t. Many issues remain undiagnosed or we simply live with. There is a need to focus on the risks and make provision for them.
Roof vents not linked to extract fans
Faulty solar thermal system
Poorly designed and constructed bays

9. Innovate UK Findings (www.bdx.org.uk)
Went well:
Traditional services
Air tightness PV
3rd Party Quality Systems
Went less well:
Innovation
Unmanageable complexity
Controls, BMS, Sub-Metering
Tokenism

10. Construction Process
Culture
BIM
Industry cycle

11. Clear, realistic, in-use requirements & tender documents
Procurement
Commitment to quality
Capabilities
M&S Cheshire Oaks store – evaluated by Innovate UK

12. RIBA Plan of Works Tick box compliance or integrated design
Building physics
Buildability, and operational review
Value engineering
Design robustness

13. As built v as designed
Product substitution
Quality systems & control
Skills & knowledge
Site practices
Sub-contracts
Soft landings culture?

14. RIBA Plan of Works Commissioning Handover strategy & documentation
In-use O&M resource, commitment
Change in occupancy
Post occupancy evaluation (PoE)

15. Improvement Approaches

16. NEF Assured Performance Process (APP)
Developed in conjunction with East Hampshire District Council (Whitehill + Bordon)
Section 106
In-use targets
Risk & mitigation evaluation
Post occupancy evaluation
Two developments – NEF has worked with:
EHDC: WH&B mixed development, old army barracks, multiple phases – 3500 homes, 100,000m2 non-dom space. 15 year development process. Just selling the first stage of housing developments at Quebec park.
“Garrison Town to Green Town”:
Environment; Health & wellbeing; practical implementation rather than policies which sound good but are not delivered. Future skills requirements.
To achieve this NEF has worked with EHDC to develop and roll out a programme called the Assured Performance Process (APP).

17. Assured Performance Process – Learnings
Architects – junction detail
Devils in detail – identified a particular weakness – design approach mitigated this by adding an additional insulation layer.

18. Top Tips Great case studies exist
Create a clear supply chain business case to provide quality
Identify “in-use” needs at the outset
Quality system to ensure its delivered
Third party inspection
Post occupancy evaluation & feedback
Facilities, buildability reviews
Occasional Client: Caveat emptor

19. Quality & Construction Process

20. Further Information?
T: E:
Thank you
Contact details – web link for info on APP
You or colleagues want info about planning policies and conditions which have made a difference at EHDC and MKDP – please me.
Major developments planned for the area – workshop.
Interested & want to do more.