Assembly detail · Harrison, New York
Chimney And Roof Interface
Plan flashing, masonry boundaries, and specialists.
The Chimney And Roof Interface page separates five choices that can otherwise blur together: chimney and masonry condition; step and counterflashing design; cricket or drainage geometry; separate masonry responsibility; photo and water-shedding verification. Resolve each choice with property evidence and a named responsibility. Stay on the ground or in a safely accessible interior area. Roof access, destructive inspection, and installation belong with qualified people using proper protection.
Planning factors
Five decisions worth documenting
Use the headings as a proposal check. The actions beneath them are specific to this project decision.
Chimney and masonry condition
Obtain an appropriate masonry or chimney assessment when condition is uncertain. Cracks, caps, joints, and internal issues may be outside the roofer’s scope.
Step and counterflashing design
The roof proposal should identify step flashing and counterflashing at the chimney. Ask how new work connects to the masonry rather than relying only on exposed sealant.
Cricket or drainage geometry
Roof geometry may concentrate water behind the chimney. Ask the responsible designer or installer whether a cricket or other drainage detail is required.
Separate masonry responsibility
Keep roofing, masonry, venting, and interior repair responsibilities distinct. One trade’s completed work should not hide another trade’s unfinished condition.
Photo and water-shedding verification
Request dated detail photos and the agreed final condition. If the chimney remains a suspected leak source, record that limitation before closing the project.
Prepare the property
Keep these details on one sheet
- Chimney and masonry condition
- Step and counterflashing design
- Cricket or drainage geometry
- Separate masonry responsibility
- Photo and water-shedding verification
Before authorizing work
What record belongs with “chimney and masonry condition” before work begins?
Request a dated description and the evidence supporting the proposed treatment. Cross-check entries: step and counterflashing design; cricket or drainage geometry. Named responsibility: separate masonry responsibility. Closeout file: photo and water-shedding verification. Identity check for Chimney And Roof Interface: confirm the business, applicable County license, roofing insurance, and current Harrison permit steps separately.