Office building roof repair in Berkeley, CA: leaking parapet caps, wall flashing and wet insulation fixed with tenants informed and offices protected.
Property Types We Roof | Berkeley, CA
Office buildings in Berkeley, CA often have parapet walls around the roof, and the parapet is where many leaks start. The metal cap on top loosens at a joint, the flashing up the inside of the wall pulls away, and water gets behind it. From there it runs down inside the wall or along the deck and shows up as a stain in an office, sometimes several rooms from where it entered. A quick bead of sealant on the cap rarely solves it, because the wood behind the flashing is often already soft.
Before the visit, tell us which offices have leaks and when they appear. On the roof, we check the cap joints, the wall flashing, the wall itself, and nearby drains, curbs and vents. A leaking window or wall can feed the same stain. If water is coming in now, we can install temporary protection, including nights, weekends and holidays. Your building manager arranges access to the roof and the tenant spaces. Electrical problems go to an electrician.
The flashing behind a parapet cap can fail out of sight. Our coping and parapet cap repair lifts the cap to check the wood blocking and the top of the wall flashing. Rotted wood gets replaced before new metal goes on. If the wall itself is cracked, a mason or framer repairs it first, and an engineer reviews any structural concern. Sealing the cap joints without fixing what is underneath only buys a few months.
Damage at a wall often runs farther than the first gap. Our wall and penetration flashing work follows the flashing along the wall until we reach sound material. A few small core cuts tell us whether the insulation along the wall is wet, and each is sealed the same day with the office below protected. If the wet area spreads, we show you before cutting further, and any wall repair that belongs to another trade is listed separately.
Offices stay in use during roof work. Our occupied building reroofing plan shows which offices sit under each day's work, where the crane sets up, how debris comes down and which entrances or parking areas are affected. Your building manager notifies tenants and decides on access and protection. An empty office still may need protecting if rooftop equipment above it is being moved, so we flag that too.
If we open the parapet and find damage running over more offices, we stop, show your manager what we found and agree on the new area before going further. If the HVAC contractor or a mason needs another visit, we leave a secure temporary seal and note it. Every opening is sealed before the crew leaves, and the daily notes say what is permanent, what is temporary and what is waiting on someone else.
The middle of an office roof is often in fair shape even when one wall leaks. Then roof coating restoration can extend the life of the field, as long as the membrane is clean, sound and compatible with the coating. A coating does not fix a loose cap or rotted blocking, though. Those get rebuilt first. We price the parapet work and the coating separately so you can compare that approach with a full replacement.
If the roof is replaced instead, new insulation raises the surface along the parapet and around curbs and drains. That can leave too little flashing height on the wall or put drains too high. We measure those heights before pricing and include any curb raising or drain work in the estimate. HVAC and plumbing changes are coordinated with the right contractor first, so the new roof does not have to be cut open again.
An office parapet can hide a failed cap joint while the interior stain appears several rooms away. We follow the water path, inspect the wall and roof transition, and check the surface below before choosing repair or replacement. Downtown Berkeley office roofs share the city’s winter rain, while West Berkeley’s former industrial buildings now include office and research uses. Occupied rooms below the work area shape protection and daily closure, not the permanent repair boundary.
Office roofs need dependable access to vents, condensers, skylights and drains after construction. We compare the proposed roof section with curb heights and service clearances, then include any necessary edge or penetration reconstruction. Berkeley and Oakland have different building mixes, so we examine the actual assembly instead of assuming one office detail fits the next. The owner receives a plain record of repaired interfaces, materials left in place and any interior or mechanical work that remains with another trade.
The same parapet issues come up on apartment roofs, though there the people below are residents rather than office tenants. For an office building, the closeout package includes photos of the rebuilt parapet caps, new blocking and flashing, and any replaced insulation, plus a roof plan marking them. Temporary repairs are labeled, and anything left for a mason or another trade is listed.
Flex industrial buildings often have office space under the same roof as shops and storage. For your office building, the roof plan helps the property manager answer tenant leak calls: they can check whether an office sits under the rebuilt parapet or somewhere else, and send us photos so we can respond quickly. A quick check of the cap joints each fall catches most problems early.
Tell us which offices have leaks and send any roof drawings you have. We will inspect the parapet and send you a photo report with a clear repair plan.
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