27% of the UK’s total carbon emissions are from residential buildings. This means there is a
great incentive to improve existing housing stock to meet government target reductions in
greenhouse gas emissions and energy use.
Designed to encourage innovative plans for retrofitting existing social housing, the Retrofit
for the Future Competition aims to devise a blueprint for low carbon social housing
refits. It is being delivered by the Technology Strategy Board (TSB), a government-backed
organisation that invests in technological innovation.
Following submission of A Whole House Low Carbon Solution for Everyday Living, Gifford’s
Building Sustainability team, led by Director Glen Irwin, was selected by TSB to apply its ecoretrofit
proposals to 11 Tintagel Drive.
11 Tintagel Drive, a 1960’s 3 bedroom semi-detached house in the London borough of
Harrow, is typical of the social housing abundant in the borough and representative of the
majority of local authority owned property in the UK.
The engineer at Gifford first contacted the A. Proctor
Group’s technical department
providing their target u-values for the eco retrofit project, and requested input on what type
of insulation they could use to reach the targets. Also a concern was the thermal bridging in
vital junctions, and requested a solution for doing this detailing.
With this information, the A. Proctor
Group’s technical department were able to provide
floor and wall u-value calculations and a condensation risk analysis with options of either
insulation between the joists or over the existing floor.
To achieve a u-value of 1.12 W/m2K, the A. Proctor
Group supplied Spacetherm PP.
Spacetherm is one of the world’s best performing insulation materials, with a class leading
thermal conductivity of 0.013 W/mK. It is moisture and mould resistant and there is no
decrease in thermal performance over 50 years. Its ultra-thin insulation saves valuable space
without altering the exterior fabric of the building. Spacetherm PP is insulation bonded to
a Plywood reinforced Plasterboard for internal refurbishment of exterior walls. The plywood
reinforcement allows for a direct shot fire fixing to be used making the installation quicker
This project is already demonstrating that energy saving measures such as innovative retrofit
insulation can dramatically reduce carbon emissions in existing housing stock.
The techniques and improvements applied at 11 Tintagel Drive will be monitored by TSB
for 2 years to establish whether they are viable, practical and create a comfortable living
environment for residents. Ultimately, these could be refined and rolled out across the
country in a cost effective “kit of solutions” to help the UK meet its 80% carbon reduction
targets by 2050.
For further information related to the A. Proctor
Group’s range of thermal insulation, or any
of their other product ranges, please visit www.proctorgroup.com.
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