Richard Partington: Architect and Urban Designer Dvab Steering

Richard Partington:

Architect and Urban Designer DvAB steering group co-chair NHBC Part L Guides Architect advisor to ZCH Long association with JRHT’s Derwenthorpe

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Housing Standards Review: everything is clear and simple now….

Part L and ‘zero carbon’

Energy and Planning Act 2008

EU ‘Nearly zero energy buildings’

London Plan – technology preferences

Passivhaus (not a compliance route)

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk THE ENERGY HIERARCHY

Cost not exceeding £x per tonne CO2

Allowable Solutions

Carbon Compliance (on-site and connected heat)

Energy Efficiency

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk DvA Industry wide research B

Literature review

Interviews, Design Review & Construction Walk-through: 100 Plots including Passivhaus

SAP Audit

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Measurement and Testing

Houses measured by Centre for Built Environment Leeds Metropolitan University with Co-heating test

Whole house heat loss - Measured Co-heating versus Predicted

/ Heat loss (w loss Heat

Tested dwellings

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Passivhaus principles

The 21st century home This guide will help y ou t o design and commission homes t hat include:

1. Simple, efficient servic es Homes should be designed around a logical services strategy, providing efficient and accessible routes for ventilation ducts, pipework and wiring.

2. Fabric First The most robust way to minimise energy use is through the building fabric. Getting the fabric right will save energy for the whole life of the dwelling.

3. Adaptations for climate change Homes should be designed to adapt to cl imate change, especially the prospect of higher average temperatures, more frequent, heavy rainfall, and the increased likelihood of flooding.

4. Balanced priorities Designers should think about insulation, airtightness, ventilation, comfort and acoustics simultaneously as each issue interacts wit h the others. For instance, heat saving measures should not be pursued at t he expense of good ventilation and indoor air quality.

5. Good ventilation Window design and posit ioning should take account of overheat ing (unwanted solar gains), dayl ighting, security and vent ilation.

6. Appropriately sized systems The design of services (heat ing and hot water) should be appropriate for the predicted occupancy and fabric performance.

7. Simple and intuitiv e controls Homes can only operate efficiently when the occupants understand how they are intended to run and how to get t he best performance from them. Controls, switches and d isplays must be simple, intel ligible and intuitive.

8. Passive and activ e measures To create an efficient ‘system’ designers should understand t he relationship between passive (fabric, structure, finishes) and act ive measures (services, ventilation, heating).

9. Low and zero carbon t echnology Expensive low and zero carbon technologies should be opt imised once the demand has been reduced. Safety factors and overdesign should be minimised, whilst retaining suitable flexibility.

Illustration © Richards Partington Architects

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Mmmm?

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Existing housing stock, technical and social complexity:

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Existing housing stock:

Cressingham Gardens, Brixton

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Priorities : project

Zero carbon 2016 definition - Prepare now in briefing and planning

Reduce fuel poverty - Impacts welfare, health, rent arrears

Minimise overheating (projected climate data) - Unknown consequences

but already a problem

Sustainable materials

Minimise construction waste

Low water usage POTENTIAL INFLUENCE TO POTENTIAL

Sustainable water

Local and sustainable food

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Priorities : occupants

Reduce fuel poverty – Interested in outcome not technicalities

Spacious adaptable homes?

Local and sustainable food

Sustainable water

Low water usage

Minimise overheating

LIKELY INTEREST / ENGAGEMENT LIKELY Sustainable materials

Minimise construction waste

Zero carbon 2016 definition

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Joseph Rowntree Urban extension York

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Masterplan

Type A Prototypes

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Information and learning

TAP Temple Avenue Project

Intercative web tool and Information on upgrading existing dwellings

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Prototype aims

Two MMC construction systems thin bed blockwork structural insulated panel

design intention delivered? did systems meet claimed performance? was the supply chain robust? interfaces communicated and understood ? sub-contractor performance product substitutions and changes were modelling assumptions correct? lessons for a volume build

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Construction

Suspended floor:

‘heatsave’ insulated blocks vertical insulation on face of sleeper wall

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Air pressure test

Thermal image - balcony door not tight on seals altered pressurisation figure but not depressuristaion

Test date Depr Press Mean m3/(h.m2) 19 October 5.89 5.84 5.87 22 October 5.7 5.42 5.56 after parge coat 19 November 4.6 4.0 4.3 indicative only 09 December 4.13 building regs (ATUK)

09 Decemeber 3.27 loft hatch closed

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Mind the Gap

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk Mind the Gap

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk C15 Poor installation of fabric

outer leaf

inner leaf

insulation

air movement

BSRIA Residential Network Launch 11.09.2014 www.rparchitects.co.uk