Case Study – Erneley Close

Erneley Close, Manchester

EnerPHit Refurb

The first major successful EnerPHit project in the UK, the two run-down Erneley Close social housing blocks were transformed with full enveloping, airtightness and MVHR systems. Aldas provided initial training for the site airtightness champions team and extensive preliminary and acceptance airtightness testing. Since completion, residents report affordable comfort and great satisfaction



Name: Erneley Close Retrofit
Location: Manchester
Building Type: 4 storey maisonettes
Construction type: Cross Floor Concrete frame
Completed in: May 2015

U values
Roof: 0.08 W/m2K
Timber Frame Infill Walls: 0.09 W/m2K
Gable End Walls: 0.12 W/m2K
Ground Floor: 0.21 W/m2K
Doors and Windows: 0.9 W/m2K

Measured Performance
Actual Energy Use based on analysis of heating demand
January – April 2015 21.09kWh/m2a
Air pressure result:
12 block 1.0@50pa over total floor area of 740m2
20 block 1.0@50pa over total floor area of 1228.3m2

Erneley Close Team

Client: One Manchester Housing Group
Developer: R-Gen Developments Ltd
Architect: 2e Architects
Structural Engineer: Marston and Grundy
Mechanical Engineer: Alan Clarke
Passivhaus Consultant: Eric Parks
Airtightness: Aldas Ltd
Contractor: The Casey Group

View the Image Gallery to see before and after pictures of the project. These have been collated by Aldas

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Passivhaus Awards

UK Passivhaus Awards 2015 Large Projects Finalist. View the project details from the Passivhaus Trust website

Airtightness Report

Download the Airtightness reports by Aldas

Some more files for you..

Air Leakage Certificate

A leakage certificate for Erneley Close in accordance with the BS EN 13829:2001

Air Leakage Report

Report on the Preliminary Air Leakage Testing of two maisonettes in Erneley Close

Erneley Close Training

Airtightness Champions training schedule for those onsite at Erneley Close

Erneley Close

Passivhaus Awards 2015

Shortlisted in the Large Projects category of the UK Passivhaus Awards 2015. A regeneration of two dilapidated blocks of flats in one of the poorest parts of Manchester, with EnerPHit as a mechanism for creating a sustainable low carbon community.

Kate de Selincourt

How to save
social housing blocks

Britain and Ireland’s post-war social housing blocks are seen as ugly and uncomfortable, and suffer from high energy bills, damp and mould. But three ambitious renovation projects show the answer doesn’t always lie in demolition.

Excellent results were achieved by having a specialist team and an Air Tightness Champion based on site.

The Casey Group Ltd

Home of Airtightness Champions

Please contact us so we can assist with all things related to Airtightness

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Erneley Close
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