The research project had the following objectives: document the development of a building envelope retrofit strategy for a high rise apartment building; monitor, assess and document the performance of a high-rise apartment building envelope retrofit withrespect to heat, air and moisture control; assess the degree to which the monitoring protocol can be implemented as part of regular operation and maintenance activities for new and existing building; and assess the potential for the development of a commercially viable, building envelope performance monitoring protocol.
Looks at two residential flats in a high-rise residential building in Hong Kong using HBT2 detailed building heat transfer simulation software. It analyses the influence of the thermal insulation layer in the outside walls on the yearly cooling load and maximum cooling demand. Tall residential buildings in Hong Kong do not usually incorporate thermal insulation. The simulation predicted a maximum decrease in annual cooling load of up to 6.8%, using a 5 cm thick thermal insulation coating which faced into the flat.
Describes how a computational fluid dynamics code was used to predict temperature and flow fields in recessed spaces outside high-rise residential buildings housing condenser units for window air conditioners. Attempts to analyse how heat is rejected into the spaces, which differ in height and location of unit. A strong rising hot air stream and one vortex pair were identified in the space near to the corner wall. It was also found that condenser units operate poorly when placed inside the taller recessed space, and at higher locations and nearer to its corner wall.
The Conservation Co-op is a four storey 84 unit residential building in Ottawa, Canada, which when built (1995) embodied as many environmentally sound concepts and technologies as possible within the confines of an extremely tight budget. The objective of the development team was to provide affordable housing with minimal environmental impact, enhanced durability and superior occupant health and comfort. After five year of occupancy, Canada Mortgage and Housing Corporation initiated a review of the performance of the buildings.
Measurements of the airtightness of blocks of flats in Lithuania were carried out between 1995 and 1997 to assess the effectiveness of energy saving measures. At that time there was no real data on the airtightness of such dwellings available. The aim of the measurements was to evaluate how much heat could be saved by diminishing the air change rate. Since there are no thermostats installed in the dwellings, 'tightening' becomes the only measure available to increase indoor temperature.
From 1953 to 1975, some half a million high-rise flats were constructed in the UK in response to the need at that time for the rapid provision of substantial numbers of affordable dwellings. For a variety of reasons, including environmental and social problems, many of these buildings were subsequently demolished. However, many housing authorities still own a considerable number of high-rise developments which, while structurally sound, will require to be upgraded if they are to continue in service for rental purposes.
Dwellings airtigthness is not well known in practice, in France.When dwellings are equipped with mechanical ventilation systems (which represents about 95% of the new dwellings in France) the airtigthness can strongly influence the performance ofventilation.In the frame of the European Joule Project TIP-VENT (Towards Improved MechanicalVentilation Systems) [1], measurements of airtightness and underpressures were made onthree multifamily buildings.
MJM ACOUSTICAL CONSULTANTS INC. has been retained by the CANADA MORTGAGE & HOUSING CORPORATION to conduct a research project on the noise isolation provided by access doors in multi-dwe.lling buildings. A total of nine Sound Transmission Loss (TL) tests were conducted on four 1 3/4" doors (one wood door and three metal doors) and one 2 1/4" wood door. This research project has also been used as a preliminary attempt to validate a simple method to m. easure the Sound .T ransmission Loss and. Sound Transmission Class of a door when it is installed on site.
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