Part L Second Tier Documents

The new edition of Part L makes reference to a number of secondary documents which are issued by DCLG and published by NBS. These are:

Low or Zero Carbon Energy Sources: Strategic Guide

This strategic guide provides sufficient information to decide if a particular LZC energy source is appropriate for the building under consideration and to estimate the potential for carbon dioxide emissions reduction. The guide comprises an introduction to LZC energy sources; a set of calculation methods to enable the carbon dioxide emissions reduction potential of individual LZC energy sources to be calculated in domestic and non-domestic building applications; and outlines guidance on key issues for certain LZC energy sources where this is lacking in current literature.
html, pdf, book (A4; 24 pages; code: 57644; Price: £8.50)

Domestic Heating Compliance Guide

This booklet provides guidance on the means of complying with the requirements of Part L for conventional space heating systems and hot water systems in dwellings. It comprises four self-contained fuel-based sections, each of which addresses all the requirements applicable to primary and secondary space heating and hot water technologies for gas-fired, oil-fired, electric and solid-fuel systems, and five specialist technology-specific sections which provide further guidance on the minimum provisions for specialised space heating and hot water technologies (community heating; underfloor heating; heat pumps; solar water heating; and micro-CHP units).

html: 1st Edition, May 2006 with December 2007 Corrigenda

pdf: The December 2007 Corrigenda, 1st Edition, May 2006

pdf: 1st Edition, May 2006

book: 1st Edition, May 2006  (A4; 64 pages; code 57645; Price: £15.00)

Non Domestic Heating, Cooling and Ventilation Compliance Guide

This booklet provides guidance on the means of complying with the requirements of Part L for conventional space heating systems, hot water systems, cooling and ventilation systems in non-domestic buildings. Its sets out the minimum provisions for efficiency of the plant that generates heat, hot water or cooling; controls to ensure that the system is not generating heat, hot water or cooling unnecessarily or excessively; other factors affecting the safety or energy efficiency of the system; insulation of pipes and ducts serving space heating, hot water and cooling systems; and acceptable specific fan power ratings for fans serving air distribution systems.
html pdf, book (A4; 64 pages; code: 57646; Price: £15.00)

National Calculation Methodology for determining the energy performance of buildings

This guide defines the procedure for calculating the annual energy use for a proposed building and compares it with the energy use of a comparable ‘notional’ building. The National Calculation Methodology (NCM) also calculates the rate of carbon emissions from the building which should not be greater than its Target Emission Rate as described in Approved Documents L and also calculated by the NCM.
A4; 24 pages; code: 57647; Price: £8.50