A twin wall ventilated firestop is a fire protection device used with twin wall flue systems. It's specifically designed to allow the flue to pass through a combustible floor or ceiling while maintaining the fire-resistance rating of the structure. It provides a safe and approved method for the flue to pass between floors, ensuring proper clearance from flammable materials.
Some firestop plates are designed to be ventilated, allowing for airflow between floors to help manage temperature and prevent overheating.
HETAS Approved and is CE marked.