Commercial Roof Inspection: What to Expect and What Drives the Cost

Published September 3, 2026 · By Javier Solis, FL Certified Roofing Contractor Lic. #CCC1330147

A commercial roof inspection is a documented, on-roof survey of the membrane, seams, flashings, drains, edge metal and rooftop penetrations, finished with photos and a written report. How much a commercial roof inspection costs depends on roof size, system type, access and inspection depth — at Dalton Roofing, the inspection itself is free.

If you own or manage a warehouse, strip center, office, church or multi-family building on the Treasure Coast or in Palm Beach County, the roof is the single largest building component you cannot see from your desk. This guide walks through what happens during a commercial roof inspection, what a good inspector actually checks, how often you should schedule one in Florida, and the factors that decide what an inspection costs when it is not free.

What happens during a commercial roof inspection?

A proper inspection follows a repeatable sequence. Here is the order Dalton Roofing uses on commercial roofing jobs, and what you should expect from any licensed contractor.

1. Pre-inspection review. The inspector asks for the roof's age, the system type (TPO, PVC, EPDM, modified bitumen, built-up, metal or coated), the warranty paperwork, and any past repair history. Most single-ply warranty programs expect the owner to log at least two inspection events a year, which is why that paperwork speeds up the visit.
2. Interior walk-through. Before going up, the inspector looks at ceilings and walls under drains, HVAC curbs, skylights and known leak areas. Stains, sagging ceiling tiles and rust on deck fasteners point to where the roof is failing.
3. Perimeter and edge check. Parapets, coping joints, gutters and drip edge are all part of this pass — the places wind gets a first grip on a membrane or panel system.
4. Field of the roof. The inspector walks the full roof area looking for punctures from wind-blown debris, damage from foot traffic, open seams, blisters, alligatoring on coated or built-up roofs, and loose or corroded fasteners on metal panels.
5. Penetrations and rooftop units. Every pipe boot, curb, conduit, vent and HVAC unit gets a close look. HVAC technicians and antenna installers walk these roofs to reach their own equipment, and dropped tools or dragged parts puncture the membrane — service traffic from other trades is one of the most common, and most preventable, leak sources on occupied commercial buildings.
6. Drainage and ponding. Drains, scuppers and overflow drains are checked for debris and function. Roof drainage is a code item, not just good housekeeping — the Florida Building Code requires that "unless roofs are sloped to drain over roof edges, design and installation of roof drainage systems shall comply with Section 1503 and the Florida Building Code, Plumbing, Chapter 11" (Source: 2023 FBC Building, Section 1503.4). Water still standing days after a rain is a red flag; the inspector notes where it is pooling and how deep, since that finding drives the repair-or-recover conversation later in the report.
7. Photos and measurements. Each finding is photographed with its location marked on a roof sketch or drone image so it can be found again by a repair crew.
8. Written report and recommendation. You receive a report that separates urgent items (active leaks, open seams, clogged drains) from maintenance items (sealant touch-ups, debris removal) and long-term planning items (recover or replacement horizon), walked through in plain English or Spanish.

Dalton Roofing's commercial and residential roof inspections are free and come with that written report. Call (561) 586-6646 or use the contact page to schedule one.

What does a commercial roof inspection cover on each roof type?

Every roof system fails differently, so the checklist changes with the material. The one constant across low-slope systems is the code-required minimum slope for drainage — the number an inspector compares against when a roof is holding water.

TPO, PVC and EPDM are all single-ply membranes, and the current Florida Building Code covers them under one section: 1507.12, "Single-Ply Membrane Roof Coverings." For metal systems in particular, see our metal roofing page. Why does slope matter to an inspection? Because a roof that was designed at the code minimum and has since sagged, or whose drains have been raised by a recover layer, will pond — and ponding accelerates membrane aging, adds structural load, and is exactly the kind of finding a written inspection report is supposed to catch before it becomes a leak.

How much does a commercial roof inspection cost, and what drives it?

Dalton Roofing does not charge for commercial roof inspections, so we will not quote you a number here. But owners deserve a straight answer about what moves the price when a fee is involved — for example, when you hire an independent consultant or an engineer for a due-diligence report on a property purchase.

On the inspection-depth line: an infrared moisture survey is governed by ASTM C1153, which "applies to techniques that employ infrared imaging at night to determine the location of wet insulation in roofing systems that have insulation above the deck in contact with the waterproofing" (Source: ASTM International). It is a valuable add-on before a recover decision, but it is not part of a standard visual inspection.

On the access line: federal fall-protection rules apply to anyone working on your roof. OSHA requires that "each employee engaged in roofing activities on low-slope roofs, with unprotected sides and edges 6 feet (1.8 m) or more above lower levels shall be protected from falling" (Source: OSHA 29 CFR 1926.501(b)(10)), and defines a low-slope roof as one "having a slope less than or equal to 4 in 12" (Source: OSHA 29 CFR 1926.500(b)) — which covers nearly every commercial roof on the Treasure Coast, so a professional inspector's setup time is real, not padding.

If the inspection turns up work bigger than a maintenance budget, our financing page explains the options we offer commercial and residential customers.

How often should a commercial roof be inspected in Florida?

Twice a year, plus after every significant storm — that is not a sales pitch, it is the manufacturer's maintenance schedule. The National Roofing Contractors Association sets that cadence industry-wide: "NRCA recommends routine inspections and maintenance twice annually, usually in the spring and fall" (Source: Elevate, citing NRCA). For Florida, the calendar writes itself: the Atlantic hurricane season runs "June 1 to November 30," with "most activity occurring between mid-August and mid-October" (Source: NOAA National Hurricane Center).

• Spring inspection (April–May): clear drains, re-seal terminations, fix open seams and document the roof's condition before the season starts. Our hurricane season roof prep checklist covers the owner-side tasks.
• Post-storm inspection (as needed): after any tropical system or severe thunderstorm with high winds, before small openings become interior damage. If water is already coming in, use our 24/7 storm emergency roof repair line instead of waiting for a scheduled inspection.
• Fall inspection (November–December): confirm the roof came through the season intact, clean up debris, and plan next year's budget.

Roofs shaded by tall trees, roofs with heavy HVAC service traffic, and roofs approaching the end of their service life need more frequent looks. Our post on commercial roof lifespan and maintenance in Florida goes deeper on the service-life side.

What should a commercial roof inspection report include?

A verbal "looks fine" is not an inspection. Ask for a written report that contains, at minimum:

• Roof system identification (membrane type, attachment method, insulation where known, approximate age)
• A roof plan or aerial image with each finding numbered and located
• Dated photographs of every deficiency and of representative areas in good condition
• Drainage observations: which drains and scuppers were clear, any standing water and where
• A prioritized list — immediate repairs, maintenance items, monitor-only items
• A repair-versus-recover-versus-replace opinion with the reasoning
• The inspector's name, company, and Florida license number

Keep the report with your warranty file. If you ever file a wind or water claim, a dated pre-storm report is the evidence that separates storm damage from wear — a distinction we explain in storm damage vs. wear and tear.

What happens after the inspection — repair, recover or replace?

The findings decide which options are even legal. A water-soaked deck, a roof with two or more existing layers, or unopened blisters can rule out a recover outright. The Florida Building Code, Existing Building, states that "new roof coverings shall not be installed without first removing all existing layers of roof coverings down to the roof deck" where the existing roof is water-soaked or deteriorated, where there are already two or more applications of roof covering, or where blisters are present and not first cut open, among other conditions (Source: 2023 FBC Existing Building, §706.3). So the moisture findings and the layer count from the inspection determine whether a recover is on the table at all.

The same chapter contains Florida's 25 percent rule: repair more than a quarter of the roof in a 12-month span, and the whole roof section has to come up to current code, unless the roof "was built, repaired, or replaced in compliance with the requirements of the 2007 Florida Building Code, or any subsequent editions," in which case "only the repaired, replaced, or recovered portion is required to be constructed in accordance with the Florida Building Code in effect" (Source: Florida Statutes s. 553.844(5)). A good inspection report tells you which side of that line your roof sits on — we cover the details in Florida's 25 percent roof rule.

From there the path is one of three: targeted roof repair, a coating or recover where the code allows it, or a full roof replacement.

Who should perform a commercial roof inspection?

A licensed Florida roofing contractor or a licensed engineer. Florida defines a roofing contractor as one "whose services are unlimited in the roofing trade and who has the experience, knowledge, and skill to install, maintain, repair, alter, extend, or design… all kinds of roofing, waterproofing, and coating" (Source: Florida Statutes s. 489.105(3)(e)). Dalton Roofing's license, CCC1330147, is a state certification, meaning we can legally contract anywhere in Florida.

Three checks before you let anyone on your roof:

1. Verify the license. The Florida DBPR portal lets you search by name or license number (Source: Florida DBPR). Florida law makes contracts by an unlicensed contractor "unenforceable in law or in equity by the unlicensed contractor" (Source: Florida Statutes s. 489.128(1)).
2. Ask for insurance certificates. Licensed contractors must attest that they have "obtained workers' compensation insurance as required by chapter 440, public liability insurance, and property damage insurance" (Source: Florida Statutes s. 489.115(5)(a)). Ask for the certificate naming you as certificate holder.
3. Ask how they handle fall protection. The OSHA rules above apply to their crew on your building.

Our companion post, how to choose a commercial roofing contractor, expands on these checks.

Dalton Roofing inspects commercial roofs across St. Lucie, Martin, Palm Beach and Indian River counties, including Port St. Lucie, Fort Pierce, Stuart and West Palm Beach.

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