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B-Vent (Furnace) —
is a metal exhaust pipe that safely vents gases from a furnace or water heater through the roof.
Over time, the vent and its flashing can rust, crack, or separate—allowing water into the attic and potentially affecting safe exhaust ventilation.
QUICK ANSWERS
Warning signs: Rust, cracks, damaged flashing, attic leaks, water stains, or visible deterioration around the vent
Typical solution: Disconnect and remove the damaged vent, verify proper roof clearance, and install a new pipe, flashing, waterproof membrane, and shingles
Expected longevity: Life of the surrounding roof when properly installed
Pricing: Evaluation required (dependent on roof access, attic access, and the amount of vent being replaced)
Scroll through to see our previous repairs
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