Commercial Skylight and Penetration Flashing in Vancouver, WA
Repair skylight, curb and penetration flashing in Vancouver. We trace water entry, check compatible membrane transitions and document the roof detail. A wet ceiling below a skylight curb can point to failed flashing, a loose fastener or a membrane lap nearby. We inspect commercial skylights and roof penetrations in Vancouver, WA, then trace the water path to the failed detail. Columbia Business Center includes manufacturing, distribution and warehouse buildings, where rooftop vents, exhausts and service equipment can create many transitions through the membrane. We record each location and separate a skylight concern from nearby pipe or curb flashing. We examine the curb, counterflashing, sealant, membrane tie-in and visible fasteners. Pipes, conduits, vents and HVAC supports each need a flashing detail that sheds water and stays connected as materials move. A flashing failure inspection can locate an open transition. If water is active inside, a leak repair visit can follow the water path while we assess the curb and surrounding roof. Read the Curb and MembraneAt a skylight, we look for cracked or separated curb flashing, open corners, loose counterflashing, failed sealant and signs of movement between the skylight frame and roof. We inspect the membrane around the curb for splits, patches, punctures and water that collects at the uphill edge. The curb must stand above the roof surface and the flashing must carry water onto the membrane. A gap at one corner can admit water even when the visible skylight glazing appears intact. Other penetrations have different geometry. A round pipe boot, rectangular equipment curb and electrical conduit cannot all use the same detail. We check how the flashing conforms to the object, how it joins the roof membrane and whether nearby supports or clamps are secure. Service work can disturb flashing or leave a sharp edge near a boot. We note that condition and photograph the connection before proposing repair. Vancouver's wet cool season brings repeated rain against curbs and wall transitions. Winter wind can press rain toward an exposed edge, while summer warmth can move metal and membrane at their connection. We check for water marks below the detail and compare them with the inside report. Water can enter at one point and travel along a deck before appearing in the room, so we inspect nearby laps, drains and penetrations instead of stopping at the first stain. | ![]() Repair a Roof Curb or Penetration Request a roof assessment or call 555-555-5555. ![]() |
Choose Repair or Replacement
A sound curb with failed flashing may need new membrane-compatible material and a secure tie-in. A damaged or unstable curb can require rebuilding before the roof is flashed. A broken skylight frame or glazing problem is separate from roof membrane work and may require a skylight specialist. We identify the roof portion of the scope and state when another building component needs evaluation. That keeps the repair focused on what we observed at the roof transition.
For pipe and equipment penetrations, repair may involve replacing a boot, adding compatible flashing, securing a support or correcting a membrane puncture. Sealant is appropriate only where the detail relies on a sealed joint and the surfaces remain stable. Applying a bead over an open or moving connection may leave the water path in place. We explain whether the issue is at the flashing, membrane, curb or equipment support and show the connection in photographs.
Repeated failures around several penetrations can indicate broader membrane movement or a maintenance problem after rooftop service. A roof inspection can review more of the assembly, and planned repair work can address multiple details in one sequence. If wet insulation surrounds a curb, an infrared survey with selective openings may help define removal limits. We base those steps on evidence at the building.
Tie Flashing Into the Roof
We remove failed material until the curb, penetration and surrounding membrane provide a sound surface. The replacement flashing is selected for the roof system and shaped to shed water onto the field membrane. Corners and seams need continuous connection. A pipe boot must fit the pipe closely and be secured according to its material. At a larger curb, flashing height, fastening and counterflashing work together to protect the opening.
Where a skylight curb is low or water collects uphill, the proposal may include a cricket or other drainage improvement. We check the path to nearby drains and ensure the new flashing does not create a dam. At an institutional property such as Clark College in Central Park, scheduling may need to avoid classes or public access beneath the work zone. That context informs access and occupant coordination, while the roof detail determines the repair method.
Cost and timing depend on curb size, roof type, access, existing material, damage extent and whether wet insulation or deck repair is required. Rain or a wet surface can delay bonding and welding. We identify temporary protection for active leaks and state what remains until permanent work is complete. Any concealed condition discovered after opening is documented for review before added work proceeds.
Track the Roof Opening
After repair, we photograph the curb or penetration from useful angles and note the material and membrane transition installed. The location should be clear on the roof map so facilities staff can identify it during service work. We also record any remaining concern, such as a damaged skylight frame, restricted drain route or nearby membrane deterioration that falls outside the repair.
Rooftop equipment service can create new punctures or disturb flashing. Keep records of work near each curb and check the area after service. A maintenance inspection can review previously repaired openings, drains and adjacent laps. At Clark College and Central Park, roof access and work below should be coordinated with institutional activity. The record gives the next inspection a specific detail to check without assuming the whole roof has the same condition.
Commercial Roofing Questions
Can a skylight leak if the glazing looks unbroken?
Yes. Water may enter where the curb flashing meets the roof membrane, at a corner or through a fastener detail even when the glazing looks intact. We inspect the curb, counterflashing and membrane tie-in, then compare those findings with the interior leak location. If the roof detail is sound, the skylight assembly may need a separate review.
Do pipe penetrations need the same flashing as skylights?
No. A pipe boot, equipment curb and skylight frame have different shapes and movement. The flashing must fit the opening and connect to the existing membrane system. We identify each penetration type and select a repair method suited to that geometry and the roof material.
What if water appears far from the skylight?
Water can travel along the deck or insulation before it reaches a ceiling. We use the interior report to guide the roof inspection, then check the skylight and nearby seams, curbs, drains and wall transitions. Marked photos show the likely path and any additional testing needed.
Can you repair flashing while our facility is operating?
We coordinate roof access, material staging and the area below with the facility contact. Noise, odors, overhead work and public routes can affect timing, especially around occupied rooms. The work plan identifies the roof section and any temporary limits before the curb or penetration is opened.
Repair a Roof Curb or Penetration Send the Vancouver property address, building use, interior leak location and the affected skylight, pipe or equipment curb. We will inspect the transition, trace the water path and document the repair needed. Request a roof assessment or call 555-555-5555.

