Active standard | Published: 02/04/2019

ISO 21927-4:2019

Smoke and heat control systems — Part 4: Natural smoke and heat exhaust ventilators — Design, requirements and installation
(Systemes pour le contrôle des fumées et de la chaleur — Partie 4: Exutoires de fumées et de chaleur naturels — Dimensionnement, exigences et mise en place)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 21927-4:2019

Publication date: 02/04/2019

Pages: 16

Country: International technical standard

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Anotation

Description / Abstract: This document applies to the design and installation of natural smoke and heat exhaust ventilators (NSHEVs) for spaces from which smoke is extracted vertically by thermal buoyancy via the roof in the case of single-storey buildings and via the uppermost storey in the case of multi-storey buildings. It also applies to spaces in which NSHEVs are installed in external walls. This document includes tables and calculation methods for the design of clear layers in order to comply with the requirements of various protection objectives. This document includes information and provisions to be taken into account when applying the design rules set out herein and when installing NSHEVs.

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