DA DB-SI / 3 – Maintenance of Pedestrian Doors with Fire Protection Functions
The DA DB-SI / 3 is a support document (Documento de Apoyo) issued by the Ministerio de Fomento through the Secretaría de Estado de Vivienda y Actuaciones Urbanas in Spain. Published in June 2011, it serves as a technical supplement to the Documento Básico DB-SI Seguridad en caso de incendio, which is part of the Código Técnico de la Edificación (CTE). Under Article 11 of Part I of the CTE, building owners and activity holders are legally responsible for maintaining fire safety elements to ensure they meet the basic requirements defined in the regulations throughout the building's lifespan.
The document defines the technical operations and frequencies required for the upkeep of pedestrian doors that serve fire protection roles regulated by DB SI. Its scope includes pedestrian doors intended for evacuation, automatic pedestrian doors, and fire-resistant doors. The regulatory framework references several European standards, including UNE-EN 179:2009, UNE-EN 1125:2009, and UNE-EN 1154:2003, to establish quantifiable performance thresholds for opening forces and the functionality of closing mechanisms. It also mandates specific documentation and labeling protocols to track maintenance history.
This document provides a structured protocol for maintenance personnel and property managers to verify that safety components, such as intumescent seals, electromagnetic retention systems, and self-closing devices, remain operational. The following sections detail the maintenance intervals and specific verification tasks categorized by door type and building occupancy levels.
Evacuation Doors in Non-Residential Buildings
For buildings other than Residencial Vivienda (Residential Housing), maintenance operations for evacuation doors must follow manufacturer instructions and meet minimum periodic requirements based on building occupancy. Frequency is determined by the number of people for whom the evacuation path is intended, as per SI 3-4.1.
- Maintenance Intervals: Every six months for doors serving more than 200 people, and every three months for doors serving more than 500 people.
- Obstruction Check: Verification that no padlocks, hooks, or obstacles impede the free movement and opening of the door leaves.
- Mechanical Integrity: Inspection of the leaf and frame for corrosion, warping, or sagging that might prevent proper opening.
- Hinges: Checking the fixation of hinges and greasing their axles.
Opening forces must be measured to ensure compliance with the following maximum thresholds for release devices:
- Handles (UNE-EN 179:2009): Release force must be less than 70 N.
- Push Buttons (UNE-EN 179:2009): Release force must be less than 150 N.
- Horizontal Bars (UNE-EN 1125:2009): Release force must be less than 80 N.
Automatic Pedestrian Doors
The use and maintenance of automatic pedestrian doors are governed by the specific instructions provided in the manufacturer's user manual or by the installation company. All operations must comply with the technical standard UNE 85121 EX, which covers the installation, use, and maintenance of automatic pedestrian doors.
Fire-Resistant Doors (Puertas resistentes al fuego)
In addition to general maintenance, fire-resistant doors require specific inspections of their protective components. The frequency of these checks is based on the building type and occupancy levels:
- Annual: For buildings classified as Residencial Vivienda and their associated parking facilities.
- Semi-annual: For other uses with occupancy not exceeding 500 people.
- Quarterly: For other uses with occupancy exceeding 500 people.
Technical checks for fire-resistant doors include the following elements:
- Perimeter Gaps: Review and adjustment of central and perimeter gaps within specified tolerances.
- Intumescent Seals: Inspection of the condition of all intumescent seals.
- Glass Elements: Checking for cracks, breakage, and the security of the glass frame and seals.
- Closing Devices: Regulation of controlled closing devices according to UNE-EN 1154:2003 and coordination devices for double doors according to UNE-EN 1158:2003.
- Electromagnetic Retention: Testing of electromagnetic hold-open devices according to UNE-EN 1155:2003.
Documentation and Labeling Requirements
Every maintenance operation must be formally recorded in a document kept by the property owner. Furthermore, a visible label must be adhered to the door by the service provider. This label must display the following information:
- The date of the most recent maintenance operation.
- The name of the individual who performed the maintenance.
- The scheduled date for the next required maintenance inspection.
Frequently Asked Questions
What is the maximum opening force for a fire door on an accessible route?
According to SUA 3-3, fire-resistant doors located on accessible itineraries must have a rotation force (fuerza para el giro) of no more than 65 N.
How often should fire doors in residential apartment buildings be inspected?
Maintenance for fire-resistant doors in buildings of Residencial Vivienda use and their parking areas must be performed at least once a year.
What standard regulates the maintenance of automatic pedestrian doors in Spain?
Automatic pedestrian doors must be maintained according to the manufacturer's manual and the standard UNE 85121 EX.
What are the force limits for emergency exit bars?
For horizontal bars compliant with UNE-EN 1125:2009, the release force (fuerza de desbloqueo) must be less than 80 N.
Who is legally responsible for the maintenance of building fire doors?
According to Article 11 of the CTE, the responsibility for maintaining fire safety requirements lies with the building owners and the holders of the activities conducted within the establishment.
When is quarterly maintenance required for fire doors?
Quarterly maintenance is mandatory for non-residential buildings and parking facilities where the occupancy exceeds 500 people.
What specific checks are required for double-leaf fire doors?
For double-leaf doors, the closing coordination device must be checked according to UNE-EN 1158:2003 and the secondary leaf's closing mechanism must be verified for correct operation.
What information must appear on the door's maintenance label?
The label must show the date of the last maintenance, the name of the person who did it, and the date for the next scheduled maintenance.
