Description The Intumescent Letterbox is a fire-rated solution designed to maintain the integrity of fire doors while providing a functional mail slot. With 60-minute fire resistance, this letterbox features intumescent technology that expands under high temperatures, sealing gaps to prevent the spread of fire and smoke. Key features include: 60-Minute Fire Rating: Provides robust fire protection, maintaining door integrity during fire exposure. Intumescent Technology: Expands in heat to create a secure barrier against fire and smoke. Durable Construction: Made from high-quality materials for reliability and long-term performance. Standard and Secure Design: Includes internal flaps and draught-proof brushes for added safety and energy efficiency. Easy Installation: Supplied with clear instructions and compatible with various door types. Ideal for residential and commercial properties, the Intumescent Letterbox ensures safety without compromising functionality, meeting fire safety regulations for doors in high-risk environments.
