In addition to classic structures designed to protect life and property in the event of a fire, our offer also includes smoke-tight structures and joinery designed for ventilation. Smoke-tight structures are used in places where large numbers of people are present at the same time and a potential fire could have catastrophic consequences. Very often, doors with a specific fire resistance rating are also smoke-tight doors, limiting the spread of smoke within the building. Windows or air-vent doors are another type of joinery designed to provide adequate airflow to remove smoke from the building as quickly as possible. Such windows are most often integrated with the building's fire protection systems ppoż.