What “commercial” changes about a siding project
Commercial and large multifamily work carries obligations a detached home doesn’t:
- A permit is required. Kansas City, MO exempts only detached one- and two-family dwellings from the exterior-wall-covering permit (Code § 18-16(m)) — apartments, condos, townhome blocks, and commercial structures are not exempt (KCMO).
- A licensed GC is mandatory on the Kansas side. Johnson County requires a contractor’s license for any permitted project, and “all commercial projects must have a licensed General Contractor and licensed Subs — the owner cannot do the work” (Johnson County Contractor Licensing).
- Plan review takes time. Olathe commercial plan review runs roughly 15 business days (City of Olathe); other cities have their own timelines. Build the review window into the schedule, not after it.
- IBC inspections check the wall. Kansas City, MO and the Johnson County cities use IBC 2018, and inspectors check the water-resistive barrier, flashing, and final per each city’s schedule.
Permits and licensing: Missouri vs. Kansas
The biggest difference between the two states is the contractor license. On the Missouri side there’s no statewide GC license, but Kansas City, MO requires city contractor registration (an ICC exam and $1M general-liability insurance naming the City). On the Kansas side, Johnson County requires a contractor’s license for any permitted project, and commercial work cannot be owner-performed.
| Jurisdiction | Building code | Permit for a commercial re-side? | Contractor licensing |
|---|---|---|---|
| Kansas City, MO | IBC 2018 (Ch. 18) | Yes — only 1–2 family is exempt (§ 18-16(m)) | City contractor registration; no statewide MO GC license |
| Overland Park, KS | IBC 2018 (ePLACE) | Yes | Johnson County license required |
| Olathe, KS | IBC | Yes — ~15-day commercial plan review | Licensed GC + subs; owner can’t perform |
| Lee’s Summit, MO | City Chapter 7 | Yes | Permits via Development Services |
Sources: KCMO Permits Division and Contractor Licensing, Overland Park Building Codes, City of Olathe, Johnson County Contractor Licensing. Confirm the adopted code edition and the multifamily permit trigger with each city before relying on specifics. A serious commercial scope plans the permit and licensing path from the start, and assigns who’s responsible for it in the bid.
Why hail drives the commercial material decision
Hail is Kansas City’s most common and most expensive recurring exterior event, and on a large commercial elevation a single storm can damage thousands of square feet at once. Missouri logged a 182% increase in major hail events from 2022 to 2024 — the largest jump of any U.S. state (Insurify, analyzing NOAA data). On a building with that much exterior surface and rising percentage-based wind/hail deductibles, impact resistance is an insurability decision, not just a finish choice. Fire matters next — attached and mixed-use buildings need a project-specific fire/assembly review — and then lifecycle, since steel and fiber cement run 50-plus years against vinyl’s 20–30.
Which siding fits a commercial building
Commercial selection leads with hail and fire.
| Material | Hail / impact | Fire | Lifespan | Commercial fit |
|---|---|---|---|---|
| Steel | Product-specific evidence required | Excellent | 50+ yr | Highest durability; common on commercial elevations |
| Fiber cement (James Hardie, HZ5) | Moderate — impact performance is product-specific | Class A | 50+ yr | Fire-rated standard for attached and mixed-use; specify HZ5 |
| Engineered wood (LP SmartSide) | Strong — warranted against hail up to 1.75″ | Combustible | 40–50 yr | Value plus hail; faster on large elevations |
| Vinyl | Weak — brittle in cold and hail | Combustible | 20–30 yr | Rarely the right call at commercial scale |
Steel siding performance must be evaluated for the exact panel system; a roofing impact classification does not establish wall-cladding performance. Fiber cement has product fire-test documentation, but the required wall assembly must be verified; specify the HZ5 cold-climate line for KC’s freeze-thaw, not the Southern HZ10 (James Hardie). Engineered wood is the only material here warranted against hail by its maker, up to 1.75 inches. For the full five-material comparison across freeze-thaw, lifespan, and cost, see best siding for Kansas City hail. Confirm fire-separation requirements with your jurisdiction.
Putting a commercial re-side out to bid
A commercial bid is only comparable if every vendor prices the same scope. Missing line items make a “low bid” look cheap when it’s just incomplete — and the gap shows up as a change order once the wall is open. Every bid should spell out:
- Material and profile, with the exact product line (e.g., James Hardie HZ5, LP SmartSide lap)
- Full tear-off and disposal
- A defined sheathing and rot-repair allowance — not “rot extra”
- The continuous water-resistive barrier
- Flashing — windows, doors, penetrations, and kick-out flashing
- Trim and transitions
- Access equipment for height — lifts, scaffold, staging
- Permit and inspection responsibility, assigned (critical on the Kansas side)
- A tenant-disruption and communication plan
- Warranty terms — material and workmanship, stated separately
- Separated alternates for phasing across buildings or elevations
When every vendor bids that same list, the numbers finally mean something. Full framework: the siding bid and scope review and what a real multifamily siding bid must include.
Who does the work
Installations are performed by an established Kansas City–area siding contractor we vet for multifamily experience, manufacturer-correct installation, licensing and insurance. They hold a 5.0 Google rating from 100+ reviews. KC Multifamily Siding is the research and planning side. Before any contract you get the installer’s company name, license information, and warranty terms in writing.
Does a roofing impact rating establish siding performance?
No. UL 2218 scope covers prepared steep-slope roof coverings. Do not assign a roof result to every steel wall panel. Ask for the exact siding product, applicable test report, conditions and limitations. Cosmetic denting, finish damage, water entry, warranty coverage and insurance treatment are separate questions.
Plan the complete project
Not ready to talk yet? Start with the complete Kansas City multifamily siding replacement guide for condition records, wall scope, comparable bids, funding, occupied access and closeout.