EPDM, or Ethylene Propylene Diene Monomer, is a synthetic rubber material that is widely used in the construction industry. It is a durable and flexible material that can withstand extreme temperatures, UV radiation, and weathering, making it ideal for use in roofing, waterproofing, and sealing applications.

EPDM is commonly used in fa├žade systems as a membrane to provide a waterproof and weather-resistant barrier. It is also used in window and door seals, gutters, and downspouts.

When considering the use of EPDM or any other material for facades of relevant buildings above 11m, fire safety regulations must be considered. Regulation 7 of Approved Document B (Fire Safety) provides guidance on the use of materials in external walls and cladding systems to ensure adequate fire safety measures are in place.

According to the regulation, materials used in facades of relevant buildings above 11m should have a minimum fire classification of Class B-s3, d2. This means that the material must have low combustibility and low smoke production when exposed to fire.

EPDM typically has a fire classification of Class E, which means it is not suitable for use in facades of relevant buildings above 11m according to the guidance given in regulation 7.