Administration Buildings and Storage Sheds
The closed Desiderio post in Pasadena shows how a reserve center is put together. It sat on about 5.1 acres with a 22,152 square foot administration building, a 3,796 square foot maintenance facility and a 2,226 square foot storage building: three kinds of building, and three different jobs for a roof. A roofer who treats them as one roof ends up overbuilding the shed and under-detailing the shop. An administration building tends to carry rooftop units and a long run of parapet, a maintenance shop its exhaust and door edges, and a storage building is usually a plain field with a few vents.
Each calls for a different system and a different level of detail. A small storage roof is a good fit for a PVC or EPDM membrane with heat-welded or taped laps, while an office wing with equipment on curbs benefits from a cover board over the insulation and carefully built curbs and equipment supports. On a small roof, the cost is driven less by area than by mobilization, access and the staging of materials, so we price those fairly and group buildings when the site allows it. Larger storage and motor pool buildings behave more like the roof of a military warehouse or depot than like an office.
Drill Weekends and Vehicle Movements
A reserve center is quiet on a Tuesday and crowded on a drill weekend, much like the National Guard armories that work to a similar calendar, and the roof schedule follows that rhythm. We aim weekday shifts for the loud work, such as tear-off and fastening, and close each section watertight before the vehicles and soldiers return. Parked equipment on the ground limits where a hoist or a debris chute may sit, so the staging plan is sketched against the motor pool layout, not against an empty lot.
Access follows the installation's own procedures. Workers are generally vetted for a badge, vehicles are inspected on entry, and escorts may accompany crews around controlled areas. Fuel and equipment storage also matter: open flame and hot work are often limited near them, so we lean on welded sheet, mechanically attached systems and cold-applied adhesives where the site asks for it. Sorting out those limits on day one keeps a drill weekend from becoming a stop-work order.
When a Post Closes or Changes Hands
The Army closed the Desiderio center and moved its units to Bell, and a closed post leaves buildings behind that someone has to evaluate. A buyer, a city or a new tenant should know how old each roof is, how many layers it holds and where the insulation has gone wet before a price is agreed. A due diligence roof survey gives that picture, with photographs, core samples and a clear estimate of remaining life, so the budget reflects the building as it is.
If a former Army building passes into private use in Pasadena, local rules apply. The city enforces the 2025 California Building Code and Energy Code for applications filed from the start of 2026, and the Energy Code calls for a reflective low-slope surface once an alteration reaches the smaller of half the roof or 2,000 square feet. That can change the membrane choice on an older shop or office. We help owners see that early, and the flex and warehouse buildings that line East Foothill Boulevard through Lamanda Park face the same threshold, in what is the most concentrated industrial space in the city.
Submittals should settle the roof build-up before material reaches the gate. We track membrane, insulation, cover board, fasteners, and edge-metal details against the project documents, then keep the approved substitutions in the closeout file. If the deck condition differs from the drawings, the discrepancy should be documented and resolved before a crew covers it.
Commercial Roofing Questions
Why does a vehicle shop need different roof details than an office?
Exhaust and heat, mostly. Stacks and make-up air units put hot, moving air against flashing, and the long door edge takes wind at the corners. We detail collars and edge metal for those loads and check them first on every shop visit.
Can a small storage building be roofed economically?
Often, yes, because the roof has few penetrations and a simple field. The cost sits in getting crews, a hoist and material to the site, so pricing several buildings in one visit helps. We keep the detail work the same as on a larger roof and let the simple plan hold the price down.
What should be checked on a reserve center roof before a sale or transfer?
A buyer should start with the age and layers of each roof, then the drains, edges and curbs. Wet insulation is the item that changes a price most. A moisture survey and a few core samples will show it before a deal closes.
Do drill weekends interrupt roof work?
They shape the plan, but they do not stop it. Weekday shifts take the loud work, and each section is closed up before the unit returns. If a building must be used during a drill, we hold that bay or wing for a quieter phase.
Does a former Army building in Pasadena follow the city's cool roof rule?
Once the building is in private hands, the Energy Code applies when a reroof or alteration passes the area threshold. The roof then needs the stated reflectance and emittance or an equivalent rating. We read the permit requirements against the existing roof before a system is proposed.
