Commercial Roofing at Airport Business Center, Santa Rosa, CA

Office, flex and light industrial are three different roofs, and Airport Business Center puts all three in one park. It is the North Bay's largest business park, a district valued for its Highway 101 and airport access, and the temptation is to fold every building into one roof program with one price per square foot. That is the mistake. A multi-tenant office building with a crowd of rooftop units and a plain light industrial suite cost very different amounts to keep dry, and treating them alike overpays on one and underserves the other.

We repair, recover, coat and replace commercial roofs on buildings like these in Santa Rosa, CA. The first walk sorts out what is actually up there: the membrane or metal, the age of each section, how many tenants have cut into it, and where the water goes when it rains hard.

An office building in a park like this tends to be the most complicated roof of the three, because tenant improvements ripple upward: more rooftop units, more exhaust, more conduit and more people walking to service them. The leak risk concentrates at curbs, pipe supports and flashings. A light industrial building usually has a simpler roof with fewer penetrations, and its leak risk sits along the seams, at the perimeter and around loading-area equipment. Flex buildings combine both, an office-style front and a utility-style rear under one roof line.

We do not guess which is which. We look at each building on the roof, record what is there, and write it up as an office building roof problem, a flex and light industrial roof problem, or something in between. The report ranks sections by remaining life so the owner can see which building needs money this year and which can wait.

The Charles M. Schulz-Sonoma County Airport takes up 1,125 acres roughly 7 miles northwest of downtown Santa Rosa, and its two runways, 6,000 and 5,202 feet long, sit next to the park. For a roofer, that adjacency is mostly a scheduling and equipment matter. A crane lift that is routine on an inner-city street needs its height and position checked against airport requirements early, because tall equipment near an airfield can require notice to airport operations before it goes up. We raise that on the first call, not the morning of the lift.

The same goes for material and debris. Loose insulation board, scrap membrane and wind-lifted packaging do not belong anywhere near an airfield, so we stage in small quantities, tie down what is on the roof every evening and sweep the surrounding area. If your tenants include anyone who works with aircraft, we plan around their operating hours as well.

In a multi-tenant park, the roof budget runs through leases, and how roof costs are recovered from tenants varies from lease to lease. That is a question for the owner and their counsel, not for a roofer. What we can supply is paper that holds up when the question comes: dated photographs, a written scope that separates repair from replacement, and a record of which suites sit under which roof section. A format like that lets property management companies that handle several buildings compare them side by side.

Buyers need the same thing in a hurry. A roof survey before closing should answer three questions: what is the remaining life of each section, what is wet, and what will it cost to get through the hold period without a surprise. The rest is negotiation.

The airport also houses wildfire response: the Sonoma Air Attack Base, established in 1964, operates from the northeast corner of the field. On the roofs around it, the practical concerns are smoke, ash and heat. On September 6, 2022 Santa Rosa recorded 115 degrees, and Diablo winds hit 70 mph gusts during the October 2017 fire siege, the one that produced the Tubbs Fire. After smoke or ember events, we clear drain sumps of packed ash, check low corners and behind curbs where debris collects, and look for burn pitting.

Heat is steadier and harder on rooftop equipment areas, where condenser exhaust sits against the membrane all summer. A reflective coating can help a sound roof in that setting, but only if the insulation underneath is dry. When a storm or smoke event opens the roof, emergency repair can focus first on temporary water control and documenting the damage. Planned office, commercial and industrial space in the Roseland district of southwest Santa Rosa will raise the same questions.

Compare nearby Rohnert Park access planning.

Commercial Roofing Questions

Should a business park owner sign one roof contract or one per building?

Write one master agreement with a separate scope and price for each building. That keeps the unit pricing consistent and the paperwork short, while still letting an office building with many rooftop units be handled differently from a plain industrial suite. Each building gets its own condition report and its own repair history, so a sale or refinance of a single building does not pull the others into the file.

Does working beside an airport change how a crane lift is planned?

It adds a step: checking the height and location of the crane against airport requirements before the date is set. Depending on how tall the equipment is and where it will stand, airport operations may need notice. We pick the lift location, boom height and hours with that in mind, and on a smaller building a lower reach or a smaller piece of equipment can avoid the issue altogether.

How do we price a reroof when some suites are vacant?

Treat vacancy as a scheduling advantage, not a reason to reroof. Work above empty suites can be sequenced first and can run louder, which saves the occupied suites from the worst of the disruption. Price the entire roof section as one scope, though, because replacing half a section creates a seam between old and new that you then have to maintain. If only one suite is vacant, repair around it and plan replacement for the next gap.

When a metal-panel roof leaks at the fasteners, can we fix it without a new roof?

Often, yes, if the panels themselves are still sound. Replace the backed-out fasteners with larger ones, reseal the laps and penetrations and treat rusted edges. We would test a few areas before quoting a full program, since a panel with deep corrosion will not hold new fasteners. If more than a small share of the panels fail that test, a retrofit over the old panels is the better spend.

What should a buyer ask about the roof on an office or flex building in the park?

Ask for the installation date of every section, any warranty paperwork that still applies, the maintenance log and the leak history by suite. Then get an independent walk with an infrared scan, since a dry-looking roof can hide wet insulation. The deal should account for what the roof will need during your hold, and the seller's answer on records tells you how the building has been run.