Download BRE Building Elements: Building Services: Performance, by H.W. Harrison PDF

By H.W. Harrison

The fourth e-book within the BRE development parts sequence, this ebook is set the gamut of fuelled, piped, ducted, stressed out and mechanical amenities which expand over the total age variety of the UK’s development inventory. it's the caliber of heating, synthetic lights and different prone, resembling refuse disposal which makes an different clever naked carcass liveable - even effective and relaxing.

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Additional info for BRE Building Elements: Building Services: Performance, Diagnosis, Maintenance, Repair and the Avoidance of Defects (BR 404)

Sample text

4a) warm up relatively slowly. 5 Draughtstripping to control unwanted air infiltration. This example is factory applied. 6 Infrared thermography image of part of a three-storey office building. This technique is used to identify thermal bridges or areas of reduced thermal insulation, and therefore higher surface temperatures where heat is being lost to the outside of the building 24 Case study Effects of different forms of glazing on energy consumption Experiments on the comparative energy consumption of houses with single, double and heat reflecting glazing were carried out in the BRE ‘matched house pairs with simulated occupancy’.

It was the classic situation of the occupants arriving home to a cold house, turning on the heating and generating a considerable amount of moisture by cooking and washing, though in this case the problem was made worse by the use of moisture-producing ancillary room heaters. The remedy was clear enough: providing a heating system sufficient to heat all the rooms without introducing water vapour into the air. If bedrooms and bathroom were to be heated only occasionally, ancillary heaters which do not produce water vapour (eg electric storage heaters) would largely obviate the problem.

The main cause of the mould growth was condensation. The solitary gas fire was not sufficient to keep the whole house warm – the reason for the occupants using ancillary heaters in other rooms of the house. These heaters were not adequately vented to the outside air. It was the classic situation of the occupants arriving home to a cold house, turning on the heating and generating a considerable amount of moisture by cooking and washing, though in this case the problem was made worse by the use of moisture-producing ancillary room heaters.

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