Skylight and Penetration Flashing in Glendale, CA

A creative office adding rooftop equipment usually needs new holes cut through the roof for ducts, pipes or conduit. Those openings should be planned before anyone picks up a saw. When the support, the equipment and the flashing are worked out together, the flashing gets built for the real component instead of a guess.

We handle skylight and penetration flashing in Glendale, CA on all common commercial roof types. We find where the water is actually getting in, measure the curb or pipe and the roof around it, and flash it with materials that bond to your existing membrane. When the skylight glazing or the equipment itself is part of the problem, we say so and coordinate with that trade.

We measure the curb height, the flashing height and the roof thickness around each skylight and penetration. A recover or new insulation raises the roof and can leave an old curb too short, so we check that before materials are ordered.

Where we can, we check the wood nailers, curb framing and deck around the opening. Soft wood or rusted metal gets replaced. If the deck or framing looks structurally questionable, we ask an engineer to take a look.

New equipment often needs new or raised curbs. We confirm with the mechanical contractor who supplies the curb and who disconnects the unit, then build the flashing to match.

Not every curb needs to be rebuilt. Some just need new flashing; others need to be raised or replaced. We list each one with the work it needs, instead of a single allowance for all of them.

The roofer handles the flashing around the skylight curb. The glazing, frame seals and the skylight unit itself belong to the skylight installer or manufacturer. When a skylight is being replaced, we confirm its exact dimensions and how it attaches before we build the flashing.

Most skylights cannot support a person's weight. We set up fall protection, screens or guardrails around open skylights before work begins, as required.

Removing a skylight or curb can let dust and debris fall inside. We arrange interior protection with the building manager, and any electrical or structural work around the opening is done by the right licensed trade.

Our closeout notes spell out where our work ends. A finished flashing detail does not mean the skylight glazing or the equipment has been checked or approved; those items are listed separately.

Before cutting a new opening, we get the final equipment layout and support design. Ducts, pipes and conduit each need a different flashing method, from curbs to pipe boots to pitch pans.

New insulation can change the roof height at the opening. We confirm the finished height so the curb or pipe boot is the right size, and so water still drains away from it.

Each time the opening passes between trades, someone is responsible for keeping it covered. We agree on who that is, and who can approve a change in location, before work starts.

Shutting down equipment near the opening is done by the building engineer or mechanical contractor under their procedures. We schedule around those shutdowns instead of covering running air intakes.

Our estimate lists the inspection, any curb or deck repairs, the flashing work and anything the skylight or mechanical trade has to do. Quantities and allowances are shown so you can see the full job.

We take photos before, during and after, tied to locations on a roof plan. Any changes to the curb or roof are recorded.

Keep the warranty paperwork for the roof and any skylights. Most roof warranties require notice before anyone cuts a new opening, and some require the original roofer or a certified contractor to flash it.

We add each skylight and penetration to your maintenance plan, so seasonal inspections check them and record changes. Over time that gives you a real history for each opening, not just an old invoice.

A skylight curb and a new mechanical penetration create different roof details, even when they sit close together. We identify the existing membrane, curb material, fasteners and nearby water path before selecting a repair. If another trade is changing the opening, agree on support and final flashing responsibility before the curb moves. Temporary cover needs to keep the interior protected until the permanent transition is complete. Retired openings also need roof closure, not just an interior cap. Photos should show the substrate, the completed connection and enough surrounding roof to find it later. The owner then has a useful record when glass, equipment or adjacent construction is replaced.

A skylight repair in Downtown Glendale can sit above occupied retail or office space; a San Fernando Road industrial opening may affect a work area below. We protect the room under the work and document each roof connection.