- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 23 Nov 2017
Rules of Thumb - Guidelines for building services
Rules of Thumb - Guidelines for building services (5th Edition) (BG 9/2011) was written by Glen Hawkins and published by BSRIA (Building Services Research and Information Association) in April 2011.
The rules of thumb provided are general principles derived from practice and experience. They have been created by referencing a range of contemporary sources and reflect current design practice. They can be useful in the early stages of design, such as briefing, feasibility studies and early concept design, helping assess:
- Space and weight requirements.
- Outline costs.
- Environmental performance targets.
- Heating, cooling and electrical loads.
They can also be used in later stages to ‘sense check’ detailed calculations and assess ‘what if’ scenarios.
The latest edition has been updated and expanded to provide more detailed information, including:
- More guidance about space and weight allowances.
- CO2 emissions benchmarks.
- Clearer guidance about costs, expanded to include energy consumption, maintenance, operation and life cycle cost information.
- A system features section, subdivided into mechanical and electrical systems.
- Guidance about compliance with Part L of the Building Regulations, renewable technologies and air permeability requirements.
The book is subdivided into 7 colour-coded sections:
- Space and weight.
- System features – mechanical building services, electrical building services and natural ventilation.
- Cooling, heating and electrical loads.
- Water consumption.
- Internal and external design criteria.
 Related articles on Designing Buildings Wiki
Featured articles and news
Book review: The vertebrate architecture of one of the most important practices of the 20th century.
Matt Rhodes, Quiss Technology, explains how an increasing number are falling victim to sophisticated cyber-attacks.
Assembly drawings represent items that consist of more than one component and show how they fit together.
Is the water sector under too much pressure from the regulator?
Everything you need to know about acoustics in under 800 words.
Check out our list of the 90 most unusual buildings of all time.
The government is to set a personal consumption target to reduce water use.
BSRIA calls for more education to promote fuels that are fit to burn.
Michael Gove admits air pollution is making people ill and shortening lives.
BRE call for a clearer, focused drive for the delivery of sustainable, quality developments.
Proposals for a 140m high observation wheel next to the Tyne.