A contractor needs a code-compliant, serviceable roof penetration detail for a condensing boiler flue through a low-slope green roof that allows replacing the flue terminal without damaging the waterproofing or insulation.
Manufacturer flashing kits seal the flue directly to the roof membrane, making replacement require cutting into the waterproofing and disturbing insulation. No off-the-shelf system provides a separate replaceable sleeve for serviceability.
Workarounds Described
- Uses proprietary flashing kits that seal flue directly to roof membrane
- Plans to use a generic sleeve but lacks off-the-shelf components
FlueSleeve Pro
FlueSleeve Pro is a modular roof penetration system for condensing boiler flues that separates the waterproofing sleeve from the replaceable flue pipe. It includes a rigid sleeve with integrated EPDM flashing boot, a removable storm collar, and insulation in the annular gap to prevent condensation. This allows flue replacement in minutes without damaging the roof assembly.
- Rigid PVC/PE or stainless steel sleeve with integrated EPDM flashing boot
- Removable clamped storm collar with gasket for weather-tight seal
- Pre-formed annular gap insulation to prevent condensation
- Compatibility with standard 80/125 mm concentric flues
Existing Solutions Mentioned
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