British Standards Relevant to Agriculture

British Standard Summaries

BS5502: Part 43: 1990
Building and Structures for Agriculture
Code of Practice for Design & Construction of Poultry Buildings

The text herein is not a a full reproduction of the British Standard. It is summary based upon interpretation of the original text and not intended as a replacement for the full text. It should be used for general guidance only.

BS5502 is sub-divided into a number of individual standards. These can be broadly broken down as follows:

  • Part 0: Introduction
  • Parts 10 - 19: Reference information
  • Parts 20 - 39: General designs
  • Parts 40 - 59: Livestock buildings
  • Parts 60 - 79: Crop buildings
  • Parts 80 - 99: Ancillary buildings

This Standard is concerned with Poultry Buildings.


  • Consider carefully the requirements given in the Code of recommendations for the welfare of domestic fowls.
  • All buildings must be free from projections, edges or perforations that could cause damage to the birds.
  • Adequate insulation must be provided to enable recommended temperatures to be reached and to avoid condensation. Specific guidelines are given.
  • Wood preservatives must be non-toxic to the birds.

The building

  • Floors must meet specific guidelines for design, cleaning, disinfecting and meet imposed loadings.
  • Materials used must be resistant to humid conditions, damage by cleaning and disinfection, or fumigation.
  • Temperatures must be controllable and meet specific guidelines given in the full standard.
  • Ventilation and air speeds must meet specific guidelines given in the full standard.
  • Humidity must meet specific guidelines given in the full standard.
  • Alarm systems must be linked to the ventilation system and temperature control.
  • Hazardous gases from wastes must be controlled.
  • Heating systems must be designed to avoid the build-up of high levels of exhaust gases inside the building.
  • Attention should be paid to fire risks. Install alarm systems which conform with BS5502:52.
  • Lighting should be supplied to meet specified standards. Illumination cycles are important. Sufficient light for inspection at all times should be available.
  • Dimensions of the building and space should be determined by the needs of the stock and the persons and machines needed to care for them. Minimum requirements are specified in the full standard.

Ancillary facilities

  • Storage/servicing area, external from the house but weather protected should be provided to store water, feed and collected eggs.
  • A section in each poultry house should be allowed for service equipment, alarm systems, header tank for water supplies, feed, eggs, general storage, hand washing facilities, medical and disinfectant stores.
  • Electricity, water and drainage should be installed to meet specific standards.
  • Secure storage for any chemicals should be provided.
  • Fire precautions, safety signs and notices should be in accordance with specific guidelines.

A British Standard nor this summary does not, necessarily, include all the necessary information for correct implementation of the Standard to any specific application. This is purely the responsibility of the user. Standards are updated by either amendment or revision. Users should ensure that they are using the latest version.

The full text of this Standard can be obtained from the British Standard Institution

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