Density sets the restoration profile: when water or fire hits multifamily housing, the loss is measured in households, not rooms — and the response discipline has to match.
Why are multifamily losses their own discipline?
Because everything is shared: walls, floors, risers, and fates. A second-floor supply failure is a first-floor ceiling collapse by morning; a unit fire smoke-loads the corridor and its neighbors. Response means containment and drying verified across shared assemblies, per-unit documentation for the layered insurance picture (property policy, renters' policies, owners' policies), access coordination across households, and communication that keeps dozens of residents informed instead of alarmed.
Summit runs multifamily losses with exactly that structure — one accountable scope, per-space files, and coordinators who work with property managers daily.
What does 1950s–70s housing stock add to the picture?
Aging systems at scale: galvanized-era plumbing reaching end-of-life across whole buildings at once, original electrical services meeting modern loads, and flat or low-slope roofs from the era meeting east-county weather. And Gresham's weather deserves respect — the Gorge east wind exits here, driving the winter wind and ice loading that made the February 2021 storm (collapsed commercial roofs in Gresham, the worst event in PGE history) so destructive on this side of the metro.
Mobile-home communities carry their own vulnerabilities — supply lines and skirted crawl spaces exposed to freeze, and hard-won flood lessons about how manufactured housing fares in water events.
How does Summit respond in east county?
From the Portland headquarters on NE Marx Street, minutes west — line answered live 24/7 at 800-769-1553, 2-Hour Emergency Guarantee on active water and fire emergencies across the service area, and Rockwood Water PUD noted as the water utility for much of this area when documentation needs it.