Smutdøre

Smutdøre is a term originating from Scandinavia, primarily Denmark and Sweden, that refers to doors designed with a specific purpose of preventing the spread of smoke, particularly in the context of a fire. These doors are a crucial component of passive fire protection systems in buildings.

The primary function of a smutdøre is to create a barrier that can contain smoke and flames for a specified period, allowing occupants time to evacuate safely and giving firefighters a better chance to control the blaze. They are typically constructed from fire-resistant materials and are designed to seal tightly when closed. This sealing mechanism is key to their effectiveness, preventing smoke, which is often more dangerous than flames due to its toxicity and reduced visibility, from migrating through stairwells, corridors, and other escape routes.

Smutdøre are often found in public buildings, apartment complexes, and other multi-story structures where the risk of smoke spread is a significant concern. They are usually integrated into the building's overall fire safety strategy and may be required by building codes and regulations. Regular inspection and maintenance of smutdøre are essential to ensure their continued functionality in the event of a fire. Their presence is a vital, though often overlooked, aspect of modern building safety.