A leak at the chimney flashing requires immediate attention to prevent water from soaking into your attic framing and interior walls. First, go to your attic or upper floor to locate the exact entry point and set up containers and protective coverings to catch any active drips. Once the weather clears and it is safe to do so, carefully inspect the exterior flashing around the base of the chimney, looking for gaps, rust holes, lifting metal, cracked counter-flashing, or deteriorated mortar and sealant. For a temporary fix, you can apply a heavy bead of exterior-grade roofing cement or specialized silicone sealant over minor cracks and loose seams, smoothing it out to create a temporary waterproof barrier. However, flashing problems often stem from improper initial installation or rusted, aging metal that needs permanent replacement. Therefore, you should schedule an appointment with a licensed roofing contractor who can properly install step flashing and counter-flashing with integrated weep holes and waterproof membranes to ensure a long-lasting, weather-tight seal.
1 votes
Marked as accepted