Hot Stack Flashing Section Detail with Insulation and Metal Sleeve

This AutoCAD DWG drawing presents a detailed hot stack flashing section designed for roof penetration and high-temperature flue installations. The drawing clearly illustrates the flue pipe passing through the roof assembly with proper flashing and sealing components. Key elements such as stainless steel clamping ring, metal hood, membrane flashing, and lap sealant are accurately shown to explain weatherproofing and heat protection. The roofing build-up includes single-ply membrane roofing, rigid insulation with a minimum thickness of 80 mm, and metal deck support, ensuring safe and durable installation.

Additional construction details include a 10-gauge metal sleeve around the flue pipe, batt insulation, and 25 mm insulation with a metal jacket for thermal protection. Water cut-off mastic and sealant layers are clearly indicated to prevent moisture ingress and thermal bridging. Each component is labeled for easy identification, making the drawing suitable for construction coordination and detailing reference. This DWG file is ideal for architects, civil engineers, MEP consultants, and builders who require accurate hot stack flashing details for roof systems. It supports a proper understanding of insulation layering, flashing assembly, and roof penetration detailing using professional AutoCAD drafting standards.