What it actually takes to re-roof a house in Washington — whether the city wants a permit, which code edition applies, who to call at the building department, and how old the housing here really is. No sales copy dressed up as local knowledge.
Washington runs to about 9.66 square miles and roughly 15,075 people. It sits about 50 miles west of downtown St. Louis. There are around 6,600 housing units here, and every one of them has a roof with a clock on it. The community dates back to 1827. We cover ZIP code 63090.
We have not logged a completed roof in Washington yet. We would rather say so than put a number on this page that is not real.
The typical home in Washington dates to around the early-1980s. A house of that vintage has usually been through two roofs, and the one on it now is often the second — which means it is old enough to be checked rather than assumed.
, but the town also carries an unusually large historic core: 445 buildings are listed on the National Register of Historic Places, including the Tibbe and Downtown Washington historic districts, so roofing/exterior work here spans both a large pre-1940 preservation-sensitive core and a later 20th-century majority.
Settled during Spanish colonial rule as St. John Meyer's Settlement, later Washington Landing (1814); the largest city in Franklin County and sited on the south bank of the Missouri River.
Housing from this stretch in Washington sits on plywood or OSB decking and was largely first roofed with three-tab shingles. Most are on their second covering by now. The things worth checking are the penetrations rather than the field: pipe boots from this era are the single most common leak we trace, because the rubber collar splits long before the shingles wear out. Ridge venting was inconsistent through these years, and OSB that has been damp for a season goes soft in a way plywood does not — you find it with your feet, not from the ground.
Washington does not publish a clear answer either way on whether a like-for-like roof covering replacement needs a permit. We confirm it with the department before we start, every time, and we pull whatever is needed as part of the job. We would rather write that here than guess on your behalf.
Washington enforces the 2021 IRC. City Code Section 500.010(A)(1) adopts the International Residential Code 2021 Edition; Section 500.010(A)(4) adopts the International Building Code 2021 Edition. Both 'as amended' per Section 500.010(B), with amendments in Exhibit A to Ordinance No. 23-13877.
The published number is 636-390-1000. Washington 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.
Permitting is on us, not on you.
Unlike some states, Missouri does not assign each municipality its own wind and snow numbers — these are metro-wide.
| Criterion | Figure | What it drives |
|---|---|---|
| Ultimate design wind (Vult) | 115 mph | Fastener schedule and the manufacturer wind rating we specify |
| Nominal design wind (Vasd) | 89 mph (derived, not published locally) | The allowable-stress figure older specs quote |
| Ground snow load | 20 psf | Structure, and how much the eaves hold in a freeze-thaw |
| Frost depth | 30 in | Footings, not roof covering |
| Seismic design category | C residential / D commercial | Lateral bracing and structural connections — not shingles |
What each of these actually does to a roof, why New Madrid does not change how shingles go on, and the difference between the code minimum and the manufacturer minimum on nails per shingle, are all in the St. Louis roofing code guide.
Elsewhere in Franklin County we also cover:
Missouri sets none of this at state level, so a specification that was right one municipality over is not automatically right here.
| City | Permit for a re-roof | Adopted code | Building dept. |
|---|---|---|---|
| Pacific | Not published | Not published | 636-271-0500 |
| Union | Not published | 2021 IRC | 636-583-1805 |
Free inspection, a written scope, and photos you keep either way.
Washington does not publish a clear answer either way. We confirm it with the building department before starting and pull whatever is required.
Washington enforces the 2021 IRC. City Code Section 500.010(A)(1) adopts the International Residential Code 2021 Edition; Section 500.010(A)(4) adopts the International Building Code 2021 Edition. Both 'as amended' per Section 500.010(B), with amendments in Exhibit A to Ordinance No. 23-13877.
The typical home in Washington dates to around the early-1980s, so most roofs here are on their second or third covering rather than their first. That figure is an ACS-derived median republished by housing-data services, not a survey of individual roofs.
It can. Washington has Tibbe Historic District and Downtown Washington Historic District. Inside a designated district, changing a visible roof material or colour can need preservation review before the permit is issued. Like-for-like replacement usually raises fewer questions, but we check before quoting.
Not yet. We have no completed roof logged in Washington, and we would rather say so than put a number on this page that is not real.
Missouri has no state-level roofing contractor licence. Licensing and registration are imposed municipally, and several St. Louis metro cities require it. Illinois does licence roofers statewide, so a contractor working the Metro East needs an IDFPR roofing licence.
Permit and code details for Washington come from the jurisdiction's own published pages and codified ordinances. Population, housing and neighbourhood detail come from census data and the sources below; housing-age figures are ACS-derived medians republished by housing-data services, so treat them as approximate. Sources: ecode360.com · www.washmo.gov · ci-washington-mo.smartgovcommunity.com · en.wikipedia.org · en.wikipedia.org · en.wikipedia.org · www.city-data.com. Municipal staffing, phone numbers and adopted code editions change — confirm with the jurisdiction before relying on anything here.