No-fines concrete housing insulation scheme (CP779)

LEAD AGENCY: The Riverside Group Limited
OTHER PARTNERS: Constructive Thinking Studio Limited; Sustainable Construction Monitoring and Research Ltd; Adecoe Ltd
PROJECT SUMMARY: This project will address the heat loss and damp issues prevalent in no-fines concrete housing, retrofitting 35 such houses in Runcorn. These are difficult to retrofit costeffectively, so 7 different combinations of measures will be trialled, each applied to five houses. The technologies are categorised as: external wall insulation, internal airtightness and complementary measures. Each property will receive a combination to test the efficacy of the different measures. In phase one all five properties will benefit from the same technology (there is a different technology for each group). In phase two (after a three-month period), a second set of minor improvements will be made to test the impact of low level air-tightness interventions for the best combination of ‘marginal gains’.
EVALUATION METHODOLOGY: Interviews will be conducted with a sample of households to capture energy consumption behaviour and previous energy expenditure. Household interviews will be supplemented with thermal data-logging in each room and externally using recognised calibrated stand-alone devices, and smart metering of energy use. Energy meter readings will be provided by householders.

A thermographic survey will be done on all properties, and air pressure tests performed on a minimum of three properties per group.

Monitoring will be carried out for 12 months, which will include a full winter heating period.

PROJECT OUTCOMES:
  • The project will offer NEA and partners a further understanding of retrofit improvements to no-fines housing, an often neglected area of housing type.
  • The project uses a matrix of small improvement measures and the project will reveal different combinations of products that can be used to develop a retrofit approach to no-fines housing.
  • The improvement in insulation coupled with smaller measures will hopefully show an increase in thermal comfort for residents and a reduction in their energy bills, it is of interest to discover whether the thermographic performance of the property matches the household feedback.
REGION IN WHICH PROJECT WILL BE DELIVERED:  North West
LOCAL AUTHORITY AREA/KEY LOCATIONS IN WHICH PROJECT WILL BE DELIVERED:  Halton Borough Council
DETAILS OF TECHNOLOGIES TRIALLED:
  •  Group A: No render, Ty Mawr Internal Hemp Insulation
  • Group B: No render, Icynene Sprayfoam, Envirovent MVHR
  • Group C: No render, Isothane Technitherm Envirovent MVHR
  • Group D: No render, Icynene Sprayfoam, Envirovent MVHR
  • Group E: Jablite Classic EWI, Isothane Technitherm Proair MVHR
  • Group F: No render, Icynene Sprayfoam, Envirovent PIV
  • Group G: Jablite Dynamic, Isothane Technitherm , Envirovent PIV
ELIGIBLE HOUSEHOLDS ASSISTED
NEA GRANT WITH MATCH FUNDING MATCH TOTAL
35 35
Project reports are currently being written and reviewed. The report for this programme will be made available during the autumn.
Published on 12-10-2016
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