About This Service
Assess the roof junction
The connection between chimney and roof includes details that manage water at the intersection. BIA describes base flashing and counterflashing as related components. The proposed repair should address the relevant connection rather than assume a surface bead of sealant resolves every junction problem.
Review masonry defects before coatings
BIA guidance treats investigation and correction of defects as part of addressing water penetration. A water-repellent treatment is not a substitute for repairing failed joints or other defects. We discuss whether the material and condition support a treatment after the underlying concern is understood.
Describe the affected fireplace
Where a home has multiple fireplaces, identify which opening or room shows moisture. The systems may have separate components and service histories. Findings for one should not automatically become a repair recommendation for every chimney at the property.
Avoid promising a universal leak fix
No single chimney product resolves every possible source of water entry. Twin explains the condition the proposed work is intended to correct. If additional investigation remains necessary, that uncertainty should be part of the discussion before a repair is represented as complete.
Give Shared Chimney Tops a Clear Scope
Several openings at one chimney top do not necessarily make one component replacement the complete job. The proposal should identify each included termination and any common cover or supporting repair. That avoids mistaking a quote for one fitting as work on every visible flue.
