. Inspection: A professional chimney sweep conducts a thorough inspection of the chimney crown to assess the extent of the damage and determine the best course of action. They will also check for any underlying issues that may have contributed to the damage.
2. Preparation: Before starting the repair or replacement process, the area surrounding the chimney is typically protected with drop cloths or tarps to prevent debris from spreading and causing damage.
3. Removal of damaged materials: If the chimney crown is repairable, any loose or damaged materials are removed. This may involve chiseling, scraping, or grinding to ensure a clean surface.
4. Repair: If the damage is minimal, the chimney crown can be repaired using a specialized chimney crown repair mortar. The mortar is applied in layers, gradually building up the surface to ensure a proper seal. Cracks or gaps are filled, and the crown is shaped to provide adequate water runoff.
5. Replacement: In cases where the damage is extensive or the crown is beyond repair, replacement may be necessary. The existing crown is removed completely, and a new chimney crown is built from scratch using appropriate materials like concrete, brick, or stone. The new crown is constructed to meet industry standards, with proper slopes and overhangs to divert water away from the chimney structure.
6. Waterproofing: After the repairs or replacement are completed, it is essential to apply a waterproofing sealant to the chimney crown. This helps to protect it from moisture, prolong its lifespan, and enhance its resistance to weather elements.
7. Clean up: Once the repair or replacement work is finished, any debris or leftover materials are cleaned up, and the surrounding area is restored to its original condition.