Treat every roof junction as an assembly, not a bead of sealant

Roof check

Record the interior and exterior location, weather direction, timing, stain path, visible metal or membrane, sealant condition, and nearby roof or wall work. Photograph from safe ground, window, or interior positions. A crack in sealant may be visible while the actual entry sits higher in the junction. Avoid touching loose metal, masonry, or material at an edge.

Season planner

Spring rain and thaw may reveal the direction of drainage; summer planning must respect heat and material conditions; fall can expose leaves or debris near valleys; winter snow and ice can conceal step, counter, or curb details. Ask when the junction can be inspected safely and what temporary protection is appropriate if permanent work waits.

Visible warning signs

Name the junction precisely: sidewall, headwall, chimney, skylight, vent pipe, equipment curb, valley, eave, rake, parapet, roof drain, or another detail. Ask which flashing elements are visible and which sit beneath covering or cladding. Roofing, masonry, siding, window, mechanical, and interior finish roles may meet at one location.

Roof system choices

A complete scope states removal limits, retained material, new metal or membrane, laps, integration with underlayment and covering, counterflashing or termination, sealant purpose, fasteners, movement, masonry cuts if any, corrosion compatibility, finish, test, and restoration. Sealant should not be described as a permanent system without explaining the actual detail and maintenance expectation.

Project path

Determine who can authorize opening masonry, siding, trim, roof covering, or interior finish. Protect occupied space and route water or debris safely. If the property has local historic designation, check Madison project review before changing a visible exterior detail. A roofing permit and historic Certificate of Approval are separate questions.

Questions before work

Ask the contractor to show how water is expected to shed at the repaired junction and where concealed laps begin and end. What finding would require another trade or wider removal? How will the detail be photographed before covering? Which test is suitable without forcing water into another opening? What maintenance belongs to the specific sealant or component?

Closeout record

Store a roof-plan location, junction type, metal or membrane description, dimensions or profile when supplied, removed condition, photographs of concealed laps, adjacent materials, sealant product, test, permit or approval record, and warranty. That record prevents a future repair from calling every metal edge flashing or repeating incompatible material at the same junction.

Decision notes

Ask whether recurring sealant at the same junction is a maintenance item, a temporary control, or evidence that the underlying flashing sequence needs exposure. The answer should come from the actual detail and records. A proposal that removes prior material should say how the surface is prepared and how compatible new work ties into retained masonry, siding, membrane, or covering.

For a chimney, wall, or curb, decide how another trade will inspect its portion while the roofing layers are open. Coordinated access can prevent reopening the same location, but only when responsibilities are documented. Save each party finding separately and record who approved closure. One contractor should not sign off on work it did not inspect or perform.

Create a detail sheet before fabrication when custom metal is involved. Include profile, dimensions, hem or edge, finish, joint location, slope direction, nearby material, and responsible approval. Compare the fabricated piece with that sheet before installation. This reduces the chance that a field substitution changes drainage, appearance, or future access without entering the project record.