Roofing for Pacific homes: replacement, leaks and storm damage. In Pacific, 76% of the 3,218 homes were built before 2000. Any permit the job needs is ours to pull.
Pacific runs to about 6.65 square miles and roughly 7,414 people. It sits about 30 miles southwest of downtown St. Louis. The community dates back to 1859. We cover ZIP code 63069.
No completed roof in Pacific is logged in our job records yet.
Pacific's downtown core has restored brick commercial buildings from the late 1800s along First and St. Louis Streets, plus 1930s-40s Route 66 motor-court buildings (Red Cedar Inn, Al-Pac Motel, Beacon Court). Later 20th-century suburban homes fill in around that older core.
Pacific saw Meramec River flooding in 1895 and 1915, and an 1891 fire destroyed all buildings on St. Louis Street between First and Columbus. The city also straddles the line between Franklin County and St. Louis County.
From this stretch of building, houses in Pacific sit on plywood or OSB, were first roofed in three-tab shingles, and are mostly on their second roof now. Trouble tends to be at the penetrations rather than across the field: the rubber collar on a pipe boot splits years before the shingles give out, and it is the leak we trace most often. Ridge vents were hit and miss in these decades, and OSB that stays damp for a season softens in a way plywood does not, something you feel underfoot rather than see from the yard.
The Census Bureau counts 3,218 homes in Pacific, with a median year built of 1985. 170 of them (5%) went up before 1940 — 23rd of 48 places on this site for pre-1940 share — and 774 (24%) in 2000 or later. The 1970s were the busiest decade, adding 618 of today's homes (19%). (Franklin County as a whole: 10% before 1940.)
The rule of thumb from Missouri's Department of Commerce and Insurance is a useful life of usually about 25 years for a roof. On that yardstick the 2,444 homes in Pacific built before 2000 (76%) have outlived at least one roof, and 22% (723 homes) go back before 1970, two roof lives and more. Homes from the 2000s (405 in Pacific) are reaching their first replacement, while the 369 built since 2010 are mostly still on the roof they were built with.
By building type: 2,112 detached houses (66%), 116 attached (4%). 488 homes (15%) sit in two- to nine-unit buildings and 369 (11%) in buildings of ten units or more, whose roofs are normally an owner's or a board's call rather than a resident's. The count also takes in 133 mobile homes, which are a different kind of roof job. 2,022 of 3,116 occupied homes (65%) are lived in by their owners. With houses like these, the jobs we expect most are first replacements on 2000s builder-grade shingles and flat and low-slope sections, which turn up more on attached and multi-unit buildings.
| Built | Homes | Share | |
|---|---|---|---|
| Before 1940 | 170 | 5% | |
| 1940s | 53 | 2% | |
| 1950s | 112 | 3% | |
| 1960s | 388 | 12% | |
| 1970s | 618 | 19% | |
| 1980s | 565 | 18% | |
| 1990s | 538 | 17% | |
| 2000s | 405 | 13% | |
| 2010s | 326 | 10% | |
| 2020 or later | 43 | 1% |
Census ACS 2020–2024, tables B25034, B25035, B25024 and B25003: 3,218 homes, 3,116 occupied. Survey estimates.
From 2016 through 2025, NOAA’s Storm Prediction Center recorded 8 reports of hail of 1 inch or more within 5 miles of Pacific’s center, spread over 5 storm days. 5 of them were 1.75 inches or larger. The largest, 2.5 inches, came on May 26, 2024, about 4.5 miles east of the center. The most recent was 1.75 inches on March 14, 2025. These are reports, not a full record: they come from spotters and the public, so busier areas log more.
| Latest reports | Size | From center |
|---|---|---|
| March 14, 2025 | 1.75 inches | 4.7 mi SW |
| March 14, 2025 | 1 inch | 0.6 mi W |
| May 26, 2024 | 2.5 inches | 4.5 mi E |
| June 30, 2023 | 1.75 inches | 1.4 mi NE |
| April 15, 2023 | 1.75 inches | 1.4 mi SE |
A bruised shingle can look fine for a season or two, which is why a storm inspection after a date like these is worth having.
Nothing Pacific publishes says whether a like-for-like re-roof needs a permit. We call the department (636-271-0500) before the job and pull whatever is required.
Pacific does not publish the code edition it currently enforces, so this page does not name one. Editions across the metro run from the 2006 IRC to the 2024 IRC — worth asking any contractor which one they are building to.
The published number is 636-271-0500. Pacific does not publish the building official's name, so this page does not name one. Plenty of sites will show you one anyway. The department page is here.
Wind 115 mph (ultimate) and ground snow 20 psf, the same across the metro; see the roofing code guide for what they govern.
Pacific borders Eureka. Our pages for them:
Also in Franklin County:
| City | Re-roof permit | Code | Median built |
|---|---|---|---|
| Pacific | Not published | Not published | 1985 |
| Eureka | Not published | 2018 IRC | 1999 |
| Union | Not published | 2021 IRC | 1996 |
| Washington | Not published | 2021 IRC | 1978 |
All 3 Franklin County cities side by side →
Nothing published settles it for Pacific, so the department gets the question before work starts and any permit it wants is pulled by us.
Older than most people guess: the Census puts 76% of Pacific's homes before 2000 and 22% before 1970, with a median year built of 1985 (2020–2024 estimates). A roof usually lasts about 25 years, so the deck and the layers get checked before any quote.
8 reports of 1-inch-plus hail fell within 5 miles of Pacific between 2016 and 2025, the biggest 2.5 inches on May 26, 2024 (NOAA Storm Prediction Center).
Not yet: no completed roof in Pacific is in our job records, so this page shows no job count.
Researched 2026-09-09; housing, Census ACS 2020–2024; hail, NOAA SPC. Sources: pacificmo.gov · www.pacificmo.gov · www.pacificmo.gov · ecode360.com · en.wikipedia.org · censusreporter.org · www.city-data.com · data.census.gov · www.spc.noaa.gov. Rules and staff change; check with the jurisdiction.
