|Climate, Environment, Buildings & Energy|
TEMPLE AVENUE PROJECT
Derwenthorpe is a proposed new community on the edge of York, which the Joseph Rowntree Housing Trust has been developing in partnership with City of York council, consisting of 540 homes, built to high environmental standards. The Temple Avenue Project was devised to provide an evaluation of the design, construction and performance of two prototype dwellings constructed as part of the development of house-type designs for the Derwenthorpe low carbon housing scheme.
The two prototype dwellings contained some technological innovation and were constructed between July and December 2009. One prototype was constructed using thin-joint masonry construction and a second using a structural insulated panel (SIPs) build system.
The acquisition of a traditional 1930’s semi-detached dwelling on a plot adjacent to the prototype site provided an opportunity to undergo a staged refurbishment of this dwelling, to investigate whether it was possible to achieve the same exacting energy performance standards in an existing dwelling refurbishment as that being predicted for the Derwenthorpe prototype dwellings.
• To establish and characterise the design and construction issues of meeting the low carbon housing standards required within the context of the two chosen forms of prototype construction and the refurbishment of an existing dwelling.
The project began with site observations and initial testing of the existing dwelling in July 2009 and extended throughout the Winter, with coheating tests and pressurisation tests being performed on the dwellings.
Coheating tests have been performed to establish fabric heat-loss coefficients for both of the prototype dwellings and at 3 stages on the existing dwelling. Coheating tests were repeated on the existing dwelling to measure the resultant changes in the heat-loss characteristics of the dwelling prior to any intervention, after a basic “good homes” refurbishment and after additional refurbishment to bring the dwelling to an 80% reduction in CO2 emissions based on its initial performance.
Throughout the coheating tests the dwellings were monitored remotely by the Leeds Met research team. Measurements of internal conditions (room temperatures, RH, CO2 concentration) and the external environment (temperature, RH, wind speed and direction, rainfall, solar insolence) allowed accurate calculations of fabric performance to be conducted. Additional measurements of heat flux through external walls, floors and windows, together with thermal imaging surveys, conducted throughout the coheating tests provided additional information to aid analysis of the heat loss mechanisms being observed.
Temple Avenue field trial summary report
Reports published by Joseph Rountree Foundation
Temple Avenue Project: energy efficient homes for the 21st century