Jefferson County · Missouri

Roofing in Arnold, Missouri

What it actually takes to re-roof a house in Arnold — 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.

Permit for a re-roof
Not published
Jefferson County
Adopted code
2021 IRC
Set locally, not by the state
Homes here
8,982
Housing units
Typical build era
late-1970s
Median year built

Roofing in Arnold

Arnold runs to about 11.5 square miles and roughly 20,956 people. It sits about 15 miles south of downtown St. Louis. There are around 8,982 housing units here, and every one of them has a roof with a clock on it. The community dates back to 1972. We cover ZIP code 63010.

We have not logged a completed roof in Arnold yet. We would rather say so than put a number on this page that is not real.

The housing stock in Arnold

The typical home in Arnold dates to around the late-1970s. 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.

Mostly built from the 1960s into the 1970s, around the time of the city's 1972 incorporation.

We work across Arnold rather than one corner of it — Beck, Flamm City, Maxville, Old Town Arnold, Ten Brook and Wickes included. Age and construction change between them, sometimes by thirty years and a whole different framing method, which is why we look before we quote rather than after.

Arnold was formed in 1972 by the merger of six older communities (Beck, Flamm City, Maxville, Old Town Arnold, Ten Brook and Wickes). Sitting near the Meramec-Mississippi confluence, it has a documented history of major flooding, including a record Meramec River crest of 47.26 feet on Dec. 31, 2015 that affected more than 300 homes.

What we usually find on a late-century roof

Housing from this stretch in Arnold 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.

Do you need a permit here?

The city states that 'construction, remodeling, or demolition of buildings and structures requires a permit' but does not name re-roofing. Important: Arnold is an incorporated city and does NOT inherit Jefferson County's re-roof permit exemption — confirm Arnold's own position by phone.

Which code Arnold enforces

Arnold enforces the 2021 IRC. 2021 IBC, IRC, IPC, IMC, IFC, IECC, IFGC, IPMC, ISPSC and IPSDC, plus the 2020 NEC.

Permits and inspections in Arnold

The published number is 636-282-2378. The building official on record is Brian M. Herr, CBO, Building Commissioner (bherr@arnoldmo.org). The department page is here.

Worth knowing in ArnoldWell-documented jurisdiction: named certified building official, full 2021 I-Code family, published hours 8:00am-4:45pm Monday-Friday. The contrast with surrounding unincorporated Jefferson County — which exempts single-family roof replacement from permits — is a genuinely useful point for an Arnold page.

Permitting is on us, not on you.

The design figures behind the spec

Unlike some states, Missouri does not assign each municipality its own wind and snow numbers — these are metro-wide.

CriterionFigureWhat it drives
Ultimate design wind (Vult)115 mphFastener 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 load20 psfStructure, and how much the eaves hold in a freeze-thaw
Frost depth30 inFootings, not roof covering
Seismic design categoryC residential / D commercialLateral 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.

Nearby

Elsewhere in Jefferson County we also cover:

How Arnold compares with the rest of Jefferson County

Missouri sets none of this at state level, so a specification that was right one municipality over is not automatically right here.

CityPermit for a re-roofAdopted codeBuilding dept.
FestusNot publishedNot published636-937-6646
ImperialNo2015 IRC

Get a straight answer on your roof

Free inspection, a written scope, and photos you keep either way.

Common questions about roofing in Arnold

Do I need a permit to replace a roof in Arnold?

The city states that 'construction, remodeling, or demolition of buildings and structures requires a permit' but does not name re-roofing. Important: Arnold is an incorporated city and does NOT inherit Jefferson County's re-roof permit exemption — confirm Arnold's own position by phone.

Which building code does Arnold enforce?

Arnold enforces the 2021 IRC. 2021 IBC, IRC, IPC, IMC, IFC, IECC, IFGC, IPMC, ISPSC and IPSDC, plus the 2020 NEC.

How old are most roofs in Arnold?

The typical home in Arnold dates to around the late-1970s, 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.

Have you worked in Arnold before?

Not yet. We have no completed roof logged in Arnold, and we would rather say so than put a number on this page that is not real.

Does Missouri license roofing contractors?

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 Arnold 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: www.arnoldmo.org · www.arnoldmo.org · en.wikipedia.org · censusreporter.org · www.point2homes.com. Municipal staffing, phone numbers and adopted code editions change — confirm with the jurisdiction before relying on anything here.

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