- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 12 Oct 2020
Drenchers are a system of water heads that are used for the fire protection. In contrast to sprinklers which are found internally, drenchers are normally found on the exterior of a building to protect against a fire from a neighbouring building. They tend to be positioned on roofs and over windows and external openings.
- Water source.
- Pump unit.
- Distribution piping.
- Control fittings.
- Alarm device.
- Special nozzles or water head.
The three main types of drenchers are:
- Roof drenchers: Positioned on the roof ridge and throw a curtain of water upwards.
- Wall or curtain drenchers: Throw a curtain of water over openings or portions of a building most likely to admit fire.
- Window drenchers: Positioned horizontally level with the top of a window so as to protect the opening.
 Related articles on Designing Buildings Wiki
- Business Sprinkler Alliance.
- Case study A for offices to show where automatic sprinklers have the greatest impact.
- Design benefits of automatic sprinkler systems granted under approved document B.
- External fire spread, Supplementary guidance to BR 187 incorporating probabilistic and time-based approaches.
- Fire detection and alarm system.
- Fire in buildings.
- Fire safety design.
- Making the case for sprinklers and dispelling myths.
- Sprinkler head.
- The impact of automatic sprinklers on building design.
Featured articles and news
Creating comfortable climates despite extreme temperatures.
Study examines how adjustable arrangements can succeed.
Government announces plans to improve accessibility.
Resource addresses pandemic-related NEC4 contract issues.
Incorporating EDI into the provision of fair access.
Government announces global innovation strategy.
An architectural biography. Book review.
The house where the future king of France lived.
The teacher, architectural technologist and mum offers her insights.
Careful planning needed as supply chain issues continue.
The sensitive conversion of a neglected Cornwall structure.
Plan stresses local involvement in city, town and village development.