Commercial Skylight and Penetration Flashing in Roswell, GA
A cracked skylight curb corner lets water test the flashing below the frame. The opening may sit at the corner, the curb-to-roof transition, or a nearby membrane seam. We check each connection before setting the repair boundary. Roswell's warm-season rain can expose a small gap quickly. The repair must connect a sound curb, compatible flashing, and a stable roof surface.
Our inspection covers skylights, pipe boots, conduit, vents, curbs, and other roof penetrations. We record the frame and flashing condition separately when their boundaries differ. Water on the ceiling may come from condensation or another roof detail, so we compare interior evidence with the assembly above. A leak tracing visit can follow the path when the entry point remains unclear.
Check frame, curb and roof together
At a skylight, we inspect the glazing or frame condition, curb corners, vertical flashing, fasteners, and membrane tie-in. We look for open joints, split sealant, lifted flashing, cracked curb material, and signs of movement. The frame can remain sound while the roof flashing fails, or both can need attention. We identify which component is confirmed and keep replacement of one part from being assumed for the entire assembly.
At a pipe, vent, or conduit, we inspect the boot, collar, seal, termination, and membrane around the opening. Several penetrations close together can have separate causes. We check each one and mark its roof location. If a metal counterflashing or support crosses the membrane, we note its attachment and the path water could follow. Findings tied to a flashing failure receive photos and a defined repair limit.
Interior symptoms add context. A drip near a skylight may follow the curb, while condensation can form at the frame without a roof opening. We compare weather timing, ceiling marks, frame condition, and roof details before describing a likely path. A hands-on roof inspection can include adjacent drains, seams, and equipment curbs when those details connect to the reported area.
Set the flashing repair limit
A flashing repair needs a dry, stable tie-in around the curb or penetration. We remove loose material within the approved limit, prepare the surface, and install compatible flashing. At a skylight, we address each corner and lap so water sheds down the curb rather than behind the membrane. A sealant bead alone does not correct loose flashing or wet insulation below it.
Membrane type affects the repair detail. Thermoplastic membrane can require a welded patch, while EPDM and other assemblies use different materials and preparation. We identify the existing roof where possible and check compatibility before closing the opening. For a TPO roof system, a weldable flashing detail must join sound material. If the membrane is brittle or contaminated, we extend removal to a stable edge and show the revised boundary.
Water may reach insulation before it appears indoors. If a test opening finds wet material, we mark the area, photograph the layers, and remove to a dry boundary when authorized. The new insulation and cover board need a secure tie-in to retained material. A scoped roof repair can include the flashing and any confirmed adjacent membrane work while keeping concealed conditions separate.
Plan access and weather protection
Skylights and penetrations can sit near HVAC equipment, service paths, or restricted rooms. We confirm roof access, escort rules, shutdown needs, and any interior area where protection is required. If a skylight opening must remain in service for daylight, we plan temporary protection around the repair. Work stops when rain, wet surfaces, or unsafe access prevent a reliable tie-in. We secure the open boundary before leaving the roof.
Roswell's frequent rain and humid summers affect surface preparation and cure windows. We check the curb and membrane for moisture before applying adhesive or sealant. A warm surface does not prove the flashing is dry. We keep the repair sequence focused on a weather-ready zone and record any temporary measure. For offices along Holcomb Bridge Road, loading and equipment access can influence when materials reach the roof.
Before reaching a skylight, we review safe access and the surrounding walking surface. Glazing and plastic domes are not walking surfaces. We route foot traffic around the opening, protect fragile zones, and position tools where they cannot slide against the lens. If a curb is partly concealed by ballast or coating, we clear only what the approved inspection needs. Photos show curb dimensions and adjacent roof details without disturbing sound material.
We also check the frame drainage channels and weep openings where present. A blocked channel can hold water against the frame even when roof flashing remains intact. We record that condition separately from the curb tie-in. The repair can then address glazing drainage, roof flashing, or both, based on the observed path. That distinction helps keep roof membrane work from absorbing unrelated frame maintenance.
Buildings in the Historic Roswell District may be subject to exterior review when visible components change. The district covers 640 acres, and its commission reviews exterior changes on qualifying properties. We flag the question for skylight frame or curb work that changes the exterior profile. The proposed change and property determine review, so we identify it before ordering replacement components.
Photograph each completed penetration
Closeout photos show the curb corners, flashing laps, penetration boot, and membrane tie-in after repair. We record the roof zone, material used, and any condition left outside the work. If the assembly was opened, the report notes the insulation and substrate found before they were covered. This gives the asset manager a clear point of comparison after rain.
Follow-up should match the detail. A skylight repair can be checked at each curb corner and frame joint. A pipe boot can be reviewed for movement and seal condition. A recurring leak may require a wider route through adjacent seams or drains. If the property also has office space, office roof access needs can be coordinated around equipment service and occupied areas.
Request a flashing inspection for a named roof zone. Send roof plans, skylight or penetration locations, leak dates, interior photos, prior repairs, and access rules. We will trace connected details, identify confirmed conditions, and state what needs approval before the scope expands.
Related Roofing Work
Trace the opening before patching
Name the building and roof zone. Share skylight or penetration locations, leak timing, interior photos, roof plans, access rules, and system records to focus the inspection.
Questions About Commercial Skylight and Penetration Flashing
How can you tell whether a skylight frame or roof flashing is leaking?
We inspect the frame joints, curb corners, vertical flashing, nearby membrane, and interior evidence together. Water timing and visible marks help guide the route, but they do not identify the entry point alone. We report which component is confirmed and recommend a test or opening when the connection remains concealed.
Can sealant repair a skylight curb leak?
Sealant may close a compatible joint when the substrate is sound and the detail is designed for it. Loose flashing, wet insulation, cracked curb material, or a failed membrane tie-in needs a broader repair. We inspect the corner and adjacent laps, then specify whether sealant, flashing, membrane, or curb work belongs in the scope.
What happens if the leak appears away from a pipe penetration?
Water can travel below the roof surface before it reaches a ceiling. We compare the interior location with roof slope, insulation, seams, curbs, and drains along the likely path. If one penetration is not confirmed, we keep the source open and investigate connected details rather than patching the ceiling location above.
Will a penetration repair affect the membrane warranty?
Warranty requirements depend on the existing system documents and terms. We identify the assembly where records are available, use compatible repair details, and retain photographs and materials in the closeout file. We do not promise a warranty outcome. The asset manager can review system requirements before approving a repair that affects covered work.
Commercial Roofing Across Roswell and North Fulton
Roof Repair, Replacement and Maintenance for Every Kind of Commercial Building
From Historic Roswell and Canton Street to the Holcomb Bridge Road corridor, GA 400 and the North Point area, we inspect, repair and replace low-slope and metal roofs on offices, retail centers, medical buildings, schools and warehouses.