DuraVent DuraTech LDC 10" Ventilated Flat Flashing

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Warranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer.

DuraTech LDC Chimney Large Diameter

The DuraVent DuraTech LDC 10" Flat Ventilated Flashing is a high-quality all-fuel chimney flashing piece built for the DuraTech LDC double-wall chimney line. It's suited to factory-built fireplaces, large masonry fireplaces, and vented non-condensing heating appliances, providing a tight, weather-resistant seal where the chimney passes through the roof. This delivers reliable ventilation, roof protection, and professional-level installation results for residential and light commercial chimney setups.

Features:

• Roof entry seal – weatherproofs where DuraTech LDC chimney piping exits through the roof
• Leak-resistant fit – creates a tight, secure transition to boost durability and block moisture intrusion
• UL 103 Type HT certified – meets code requirements for safe installation
• Slope-specific sizing – must match your roof's pitch (e.g., 6/12 = 6" rise per 12" run)
• Pairs with storm collar – needed together for a complete weatherproof seal
• Galvalume build – resists corrosion and holds up long-term outdoors

Built as part of the UL 103 Type HT listed DuraTech LDC system, it works with diameters ranging from 10" to 16" and uses a solid-pack construction with 1 inch of ceramic insulation sandwiched between a stainless steel inner liner and an outer jacket of stainless steel or Galvalume. It requires only a 2-inch clearance to combustible materials and meets both US and Canadian testing standards, offering strong safety performance, thermal efficiency, and durability in tough venting conditions.

DETAILS AND DIMENSION: