In this article, we answer some of the most frequently asked questions about stairwell pressurisation and smoke control systems.
FAQ #1: How do stairwell pressurisation systems work?
Pressurisation systems protect escape routes in the event of a fire by preventing smoke from entering by creating a positive pressure differential. Whenever doors are opened or air leakage occurs, the system automatically responds by increasing the airflow. This ensures that escape routes remain smoke-free throughout the emergency, allowing occupants to evacuate safely.
FAQ #2: Are all pressurisation systems sized in the same way, regardless of the building in which they are installed?
No. Smoke control pressurisation systems must be sized according to the specific characteristics of each building. In line with current European standards, the selection of the appropriate system depends on factors such as the building's intended use and the evacuation strategy established in the event of a fire. These parameters determine the airflow required to maintain the necessary pressure differential and determine the most suitable pressurisation solution for each project.
FAQ #3: Which standards regulate the performance and safety of pressurisation systems?
Pressurisation systems are primarily governed by the European standard EN 12101-6, which establishes the requirements for the design and operation of differential pressure systems intended to protect stairwells and escape routes from smoke ingress.
This standard is complemented by EN 12101-13, which defines the calculation methods and design criteria for these systems. In Spain, its application is also covered by the Technical Building Code (CTE DB-SI) and the Fire Protection Installations Regulation (RIPCI).
Together, these standards ensure that the system maintains the required pressure differential to prevent smoke infiltration while allowing doors to be opened safely during an emergency.
FAQ #4: What sets SODECA's pressurisation solutions apart from other systems on the market?
SODECA is the only manufacturer in Spain offering pressurisation systems tested and certified in accordance with EN 12101-6:2022, with a guaranteed response time of just 3 seconds. This certification confirms that the system reaches its maximum airflow capacity within this time, providing independently certified performance that sets it apart from other solutions available on the market.
SODECA's pressurisation systems for stairwells, lobbies and escape routes have been tested and certified to comply with the most demanding European standards.
In addition to this certified response time, SODECA systems incorporate advanced control technology designed to respond quickly and accurately to any changes that may occur during a fire. This ensures that the required pressure differential and air velocity are consistently maintained under all operating conditions.
Designed to deliver maximum aerodynamic efficiency and fire safety, SODECA pressurisation solutions enable safe and reliable evacuation in all types of buildings thanks to their advanced technology.
FAQ #5: Which components should a pressurisation system include?
A complete pressurisation system should include, as a minimum, a supply air unit (fan), a differential pressure sensor (either integrated in the control panel or installed separately), motorised intake dampers with smoke detection, a control panel for firefighters and maintenance personnel, and, where required, an Air Release system.
SODECA offers a complete pressurisation solution that integrates all the components required to ensure safe and reliable system operation.
FAQ #6: How can I select the most suitable solution for my project?
Today, advanced design tools make it easier than ever to select the most appropriate equipment while ensuring compliance with current regulations.
SODECA's QuickFan software includes a dedicated pressurisation system calculation tool that automatically performs the required calculations in accordance with the applicable standards and instantly recommends the most suitable pressurisation solution for each project.
In addition, SODECA's Projects Department, made up of specialised engineers, provides personalised technical advice from the earliest stages of a project, delivering comprehensive technical studies and using the latest design tools to ensure the optimum solution for every application.