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Energy Conservation in Buildings. A Guide to Part L of the Building Regulations. Edition No. 1

  • ID: 2178554
  • Book
  • March 2003
  • 216 Pages
  • John Wiley and Sons Ltd
The conservation of fuel and power in buildings is an important part of the UK government's strategy to reduce national energy conservation. The revision to Part L of the Building Regulations, which came into force on 1 April 2002, lays down detailed and extensive requirements for conserving energy in almost all buildings and it covers most potential causes of building energy consumption.

This guide explains these detailed requirements and shows how they apply to particular cases, with the use of numerous worked examples. It includes a chapter on air tightness and leakage testing, a topic with which many building professionals are unfamiliar.

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Introduction; Use of guidance; General definitions applicable to L1 and L2; Testing; The conservation of fuel and power in dwellings; The legal requirement for the conservation of fuel and power in dwellings; General guidance; Design and construction; Work on existing dwellings; The conservation of fuel and power in buildings other than dwellings; The legal requirement; General guidance; Design; Construction; Providing information; Work on existing buildings; Tables of U-values; Windows, doors and rooflights; Roofs, walls and floors; Thermal conductivity and density of building materials; The calculation of U-values for walls; Background theory; Example calculations; The calculation of U-values for ground floors; Introduction; Solid ground floors; Suspended floors; Compensation calculations for glazing; Introduction; Example calculations; Target U-value examples; SAP ratings and the carbon index; SAP; Carbon factor and carbonindex; Relationship between SAP and CI; Calculation of trade-off examples; Methods of meeting the lighting standard; Lamp and luminaire efficiency; Lighting controls; Example calculations; CPR calculations - methods for office buildings; Origins of the CPR method for office buildings; The carbon performance rating for mechanical ventilation; The carbon performance rating for air conditioning and mechanical ventilation; The carbon performance rating and the whole building method; Example calculations; Solar overheating calculations; Definitions; Sources of data for the parameters; Example calculation; Air tightness and air leakage testing; The importance of air tightness; The mechanisms of air infiltration; The measurement of air leakage; The air leakage criterion; Air leakage paths; Alternative test methods; References
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J. R. Waters Coventry University.
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