**5.2. Occupancy**

This project was undertaken over a limited, albeit very focused, period. As such the infor‐ mation derived provides a 'snapshot' of building performance, rather than a more extensive review of performance over the course of an annual climatic cycle. The study collected data

The measures used in the refurbishment of the block incorporate specific approaches to de‐ sign and specification to reduce the on-going environmental impact of the building and to improve the living conditions of the potential residents. Working within the constraints (both physical and statutory) of the existing blonde ashlar and random rubble sandstone fa‐ çade and structural cores, a new internal layout was constructed to provide flatted accom‐ modation. The new insertions within this masonry skin are generally lightweight timber

The thermal performance of the building was improved by bringing the fabric up to contem‐ porary standards through a process of internal dry lining and insulation to achieve a U-val‐

was also improved through the use of secondary internal glazing improving U-values to

building's historic status in that they did not materially affect the principal elevation. To the rear a south facing, semi-glazed (approx. 50%) sunspace with an average U-value of circa

K. Both of the above strategies adhered to the design principles dictated by the

K has also been incorporated into 12 of the dwellings to provide additional amenity

K.The thermal performance of the historic timber sash and case windows

on 6 properties (5 dwellings and 1 small office) out of a potential 17 properties.

construction. Figure 9 shows the general flat arrangement.

**5.1. Construction**

158 Sustainable Energy - Recent Studies

**Figure 9.** Typical Plan Gilmore Close

and to make use of passive solar gains.

ue of 0.25W/m2

1.8W/m2

1.0W/m2

The building has three distinct groups of occupants, all of who were represented in the data collection process. The first user group is that of the mainstream social rent tenants. They occupy one of the building's two closes. The second user group, occupying the second close, is made up of residents who require supported living. The third group of users are the care staff who occupy the building's office space and provide support to user group two.

Following completion and occupation of the building there were reports from residents of poor performance and problems with the heating system. Through a process of further com‐ missioning and alteration this system was brought up to a standard where resident com‐ plaints were dramatically reduced but where continued problems were evident. Anecdotal evidence suggested over-heating was common and this was be supported by visual inspec‐ tions of window openings.

In response to these issues MEARU was asked by the architects to undertake a building per‐ formance evaluation to identify issues relative to the building performance in general with a specific focus on internal comfort. The project was funded by the CIC Start Online academic consultancy fund. The key question posed was what energy performance and environmen‐ tal conditions are being achieved, and if these are below requirements what lessons may be learned for this, and other similar projects.
