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Introduction Specifying an AOV smoke control system requires more than selecting a roof vent. The system has components — vent,

Introduction Glass versus polycarbonate comes up on almost every rooflight project. The client wants glass; the budget says polycarbonate; the

Introduction Roof lanterns are a staple specification item for roofers and builders working on both residential extensions and commercial refurbishment

Introduction Lobby dampers are one of the most commonly misunderstood components in a residential smoke control system. On site, they

Introduction If you work in roofing, fire protection, or building services, you already know the product. But for specifiers and