Local weather advisory
The National Weather Service has issued a coastal flood advisory covering Berkeley. Heavy rain and drainage loading can expose roof leaks, blocked drains, and ponding water. This is a weather exposure advisory; it does not establish damage to a specific roof.
Do not access a roof during hazardous weather. Protect people first, avoid water near electrical equipment, and request roofing help when conditions permit.
National Weather Service · Updated Oct 28, 2026, 7:20 AM UTC
Storm damage roof repair in Berkeley, CA: we secure blown-off edges and torn membrane, check for hidden water damage, and rebuild the roof details properly.
Commercial Roofing Services  | Berkeley, CA
After a strong windstorm, a section of edge metal peeled back over a row of retail stores leaves the roof edge open to the next rain. The membrane behind it may be loose, the wood nailer may have pulled out, and water may already be in the insulation. Storm damage roof repair in Berkeley, CA, starts with getting that edge secured, then working out how much of the roof the storm actually affected.
Storm damage is not always obvious from the ground. Wind can lift membrane seams without tearing them, loosen fasteners across a whole corner, or drop branches that puncture the roof in spots nobody can see. For shopping centers and retail buildings, damage often shows up first as leaks in one tenant's space, while the cause is several bays away. We walk the whole roof, not just the obvious spot, and separate fresh storm damage from older problems. You get a clear picture of what needs fixing now, what can wait and what was already there before the storm. If tenants report leaks, we ask for the location and time so we can trace each one back to the roof.
The first priority is anything that could let in a lot of water or come loose and fall. Peeled-back edge metal, torn membrane, displaced coping and open flashing at walls all go to the top of the list. Loose metal can also become dangerous in the next wind, especially over entrances and sidewalks.
If the roof is actively leaking or the edge is wide open, our emergency roof repair team secures it quickly with temporary measures: fastening down loose metal, tarping or patching open areas and sealing torn membrane well enough to get through the next storm. Those temporary fixes are photographed and noted as temporary. They keep water out, but they are not the permanent repair. Once the roof is secure and the weather clears, we come back for a full assessment. Trying to do the permanent repair in the rain, on wet surfaces, usually produces a weaker result and costs more in the long run.
Roofs that have been around a while already have wear: aging seams, cracked sealant, old patches and scuffs from foot traffic. After a storm, it matters which damage is new. Your insurer will ask, and the repair plan depends on it. Fresh damage tends to look different: clean tears, bright metal at bent edges, debris resting on torn areas and loose material that was sound before.
A post-storm roof inspection photographs every damaged area and notes what looks new and what looks older. When we cannot tell, we say so. Several marks near each other might come from one storm or from years of traffic, and the report does not claim a single cause without evidence. If you have photos of the roof from before the storm, they help a great deal. The goal is an honest account that you can rely on, whether you are filing a claim or simply planning the repair. Damage that is clearly older gets listed separately, with its own recommendation.
Once the membrane or edge is torn, rain gets into the insulation, and wet insulation does not dry out on its own under a sealed roof. A storm that opened a seam for a few hours can leave a wet area much larger than the tear itself. Water can also get into the top of walls when coping is displaced.
We check for moisture around every damaged area with core cuts or a moisture meter. Wet insulation is removed and replaced before the permanent repair. On a TPO roof, we also check whether wind has loosened the membrane attachment beyond the visible damage, since a corner that lifted once can lift again. Fasteners and plates may need to be added or replaced. Rotted or pulled-out wood nailers at the edge get replaced before new metal goes on. All of that is listed in the estimate, with unit prices for any extra damage found once the roof is opened.
Some storm damage changes the shape of the roof details. Bent edge metal cannot simply be straightened and reused. Displaced coping may have cracked the wall cap underneath. Damaged rooftop equipment may need to be moved before its curb flashing can be rebuilt. Those details need to be measured before replacement parts are ordered.
On a standing seam metal roof, wind can bend panels, pull clips loose and damage trim at the eaves, rakes and ridge. Matching replacement panels to the existing profile and color takes time, and the panels need to be measured on site. We measure edge metal runs, coping widths, wall heights and curb dimensions during the assessment and order custom pieces to fit. If a damaged unit needs a mechanical contractor first, we schedule around that. The temporary repairs stay in place until the permanent parts arrive and can be installed in good weather. We check those temporary repairs after any rain in the meantime.
In West Berkeley and Emeryville, we compare the timing of leaks and any photos you have against the roof areas we inspect before deciding on a repair boundary. Wind and falling branches are the usual storm problems here, and older buildings often have edge metal and coping that were already loose before the storm hit. Storm repair in West Berkeley follows the same steps: secure it, assess it, then rebuild it properly.
The completed record shows each damaged area on a roof plan, with photos taken before the temporary repair, after it and after the permanent repair. It lists what was replaced, including membrane, insulation, wood and metal, and notes which damage looked storm-related and which looked like older wear. Items outside the repair, such as older problems found during the assessment, are listed separately. Keep it with your insurance file and building records. If the roof leaks again after the next storm, it shows quickly whether the area was part of this repair.
Tell us where the roof was damaged and when leaks started. We will secure it, inspect it and explain the permanent repair plainly.
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