Dubuque, IA · Flat Roof

Flat Roof Contractors in Dubuque, Iowa

Commercial or residential flat roof — compare local roofing companies. 20 local roofers listed.

Short answer: Flat and low-slope roofs in Dubuque are usually TPO ($5.50–$9 a sq ft installed), EPDM ($4.50–$8) or modified bitumen ($3–$7); the membrane lasts 15–25 years, mostly decided by how well the drains are kept clear. In Dubuque: 6.5 heavy-rain days a year (1 inch+). Ask any roofer for a license number and a certificate of insurance.

Get a free quote See Dubuque in numbers
  • 6.5heavy-rain days a year (1 inch+)
  • 38.1 inrain a year
  • 6days a year at 90°F or hotter
  • 34%of homes are not single-family houses

How much life is left in my Dubuque roof?

Typical lifespans are published ranges for each material; for a Dubuque house, real life also depends on installation, attic ventilation and the weather Dubuque gets.

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Flat and low-slope roofs in Dubuque must be engineered and maintained for snow load — pooling meltwater under a heavy snowpack is the leading cause of membrane failure here, and drain clearing each fall is not optional. Common flat roof systems in Dubuque include TPO (heat-welded, energy-efficient), EPDM (durable rubber membrane), and modified bitumen — each with different cost, longevity, and maintenance profiles worth discussing with a local contractor.

Dubuque in numbers

Public records for Dubuque and its county, not estimates. Each figure shows its source.

  • #30of 209Dubuque ranks #30 of the 209 cities we cover for share of homes built before 1980.
  • #42of 209Dubuque ranks #42 of the 209 cities we cover for freeze-thaw days.

Hail reports per year in the county

Hail events per year in the county, 2017 to 2026* 13 2017 2 2018 1 2019 1 2020 2 2021 7 2023 7 2024 4 2025 11 2026*
Hail events per year in the county, 2017 to 2026*
201713
20182
20191
20201
20212
20237
20247
20254
2026*11

48 recorded events across 8 full years plus 2026 to June represented in the data. 2017 had the most events among represented full years: 13.

2026 covers only January to June: NOAA's file ends there, so it is not counted as the worst year or in the yearly average. Years without a data row: 2022. Missing rows are not treated as zero; no annual average is shown.

Source: NOAA hail events, county level · data as of 2017–2026*

Costliest storm day on record

May 28, 2016

7 reports that day (7 wind); reported property damage $90,000; county FIPS 19061, 2014–June 2026

Source: NOAA Storm Events · data as of 2014–June 2026

When storms hit Dubuque

Hail reports by month in the county, all years combined 0 Jan 1 Feb 10 Mar 11 Apr 13 May 14 Jun 5 Jul 5 Aug 4 Sep 0 Oct 0 Nov 0 Dec
Hail reports by month in the county, all years combined
Jan0
Feb1
Mar10
Apr11
May13
Jun14
Jul5
Aug5
Sep4
Oct0
Nov0
Dec0

Most hail reports come in June; the season runs March to September. Book inspections and repairs before that window, not after.

Source: NOAA Storm Events · data as of 2014–June 2026

Roofing trade around Dubuque

  • 11 roofing companies with payroll in the county, employing about 67 people; 73% have fewer than 5 employees.
  • A roofer's median pay here is $48,660 a year (Iowa).
Source: Census CBP · data as of 2023 Source: BLS OEWS, roofers · data as of May 2025

Dubuque storm record: Dubuque County

What the National Weather Service logged in Dubuque County in 2014–2026. County level, because storm reports are filed by county, not by city limits.

Where hail of 1 inch or more was reported in Dubuque County

1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1.25 in hail1.25 in hail1.5 in hail1.5 in hail1.5 in hail1.5 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail1.75 in hail2 in hail2 in hail Dubuque
  • 381 to 1.74 in
  • 111.75 to 2.74 in, golf ball to tennis ball
  • 02.75 in and up, baseball

Largest plotted stone: 2 in. Bigger dots are bigger stones.

49 reports of 1 inch or larger have coordinates. Each dot is a reported location, not a storm path.

Sources: NOAA, Census county outline

Biggest hail days

DateLargest hailReports that dayWhere it was reported
March 10, 2026 2 in, about the size of a hen egg 9 Bernard
June 14, 2017 1.75 in, about the size of a golf ball 9 Center Grove
May 20, 2014 1.75 in, about the size of a golf ball 6 Cascade
“Numerous severe thunderstorms developed during the afternoon on Tuesday producing hail that ranged in size from penny (0.88) to baseball (2.75) in diameter. There was a total of 10 reports with hail over 2.00 inches in diameter.”
National Weather Service report, March 10, 2026
Source: NOAA Storm Events Database · data as of 2014–2026

Last big hail on record

March 10, 2026

Hail of 1.75 inches (golf ball) or larger fell on 5 days in 2014–2026. Our records end where NOAA's do, so a newer storm may not be listed yet.

Strongest tornado

EF1 · March 28, 2020

It stayed on the ground for 3.8 miles and was up to 50 yards wide. An EF-1 tornado developed southeast of Sherrill and moved northeast causing significant damage to outbuildings and uprooting trees at several farmsteads. The tornado was rated EF-1 with maximum wind speeds estimated around 110 mph.

Strongest thunderstorm gust

100 mph · June 30, 2019

Further southeast along the Epworth to Fillmore track, a home lost its roof.

What it means for flat roof

Flat and low-slope roofs hold hail on the surface instead of letting it bounce. With 2-inch hail on record in Dubuque County, ask what membrane and cover board the contractor specifies.

Storm data: NOAA Storm Events (public domain). City facts: Wikidata (CC0).

What it costs in Dubuque

Asphalt-shingle re-roof, 2,000 sq ft home, adjusted for Dubuque labor and material prices. Your quote depends on roof size, pitch and scope.

That typical price is about 5.1% of the median Dubuque home value ($193,100).

Source: Census ACS (Dubuque city) · data as of 2019–2023

Full Dubuque cost guide by material →

What Dubuque's climate means for flat roof

  • Flat and low-slope roofs in Dubuque must be engineered for snow load and kept drained — ponding under a melting snowpack is the top failure point here.
  • Reflective TPO or a white coating earns its premium in Dubuque, where dark membranes absorb punishing heat and age years faster.
  • Dubuque's freeze-thaw cycling works open membrane seams and flashing laps — heat-welded TPO seams outlast taped or adhered ones in this climate.

Roofers in Dubuque, IA

20 listed. Roofers we verified against a public registry come first.

This list covers roofing companies generally. Confirm flat roof experience, materials, insurance and current availability with each company. A Verified badge refers to the registry check, not a confirmed specialty.

Flat Roof in Dubuque: questions

How do I find a flat roof company in Dubuque?
PickARoofer lists roofing companies serving Dubuque, IA. This is a general roofing directory; confirm flat roof experience and availability with each company. A Verified badge describes a separate registry check, not a confirmed service specialty or insurance check. Confirm scope, insurance and availability directly. Requests go to one contractor at a time, with up to three attempts; a response or start date is not guaranteed. Free for homeowners.
Should I repair or fully re-roof in Dubuque?
Ask a roofer to document the damage and compare a written repair scope with a replacement estimate. Roof condition, remaining life, materials and the extent of damage affect the decision. Confirm any inspection fee before booking.
When is hail season in Dubuque?
June is the worst month: 22% of the 63 hail reports NOAA holds for the county came then. Reports run from March to September. Book the inspection before March, while crews still have open dates.
How big does hail get near Dubuque?
The largest hail NOAA logged near Dubuque measured 2 inches, about the size of a hen egg. Hail of an inch or more fell on 19 days in the same record. The biggest day was March 10, 2026, with 9 reports. The National Weather Service calls hail of 1 inch or larger severe; the bigger the stone, the more likely it is to crack a shingle.
How old are the homes in Dubuque, and does it matter for the roof?
The median home in Dubuque was built in 1962, and 73.7% of homes date from before 1980 (Census ACS). A roof on a home that old has often been re-covered at least once, so ask the roofer whether there is a second layer underneath: it changes the tear-off cost. The area sees about 96 freeze-thaw days a year, which loosens flashing and sealant.
What does roofing cost in Dubuque?
For an average 2,000 sq ft home we model asphalt-shingle re-roof at $6,090 to $13,485 in Dubuque, around $9,800 in the middle. That is about 5.1% of the median home value of $193,100. Your quote moves with roof size, pitch and how many layers come off.
How many roofing companies work around Dubuque?
The Census Bureau counts 11 roofing companies with payroll in Dubuque County, employing about 67 people. 72.7% of them have fewer than five employees, so most quotes come from owner-run crews. A roofer's median pay is $48,660 a year (BLS).
How do I maintain a flat roof through Dubuque's winters?
Flat roof maintenance in Dubuque centers on drainage: clear drains and scuppers each fall before the first snow. Ponding meltwater under a deep snowpack is the leading cause of membrane failure here — water weighs 5.2 pounds per square foot per inch of depth, and even a few inches of standing water adds significant unplanned load. After heavy snow events, a professional roof rake or heating cables at the drain area prevent the most dangerous pooling. Annual spring inspections after snowmelt catch seam and flashing damage before it compounds.
What is the difference between TPO, EPDM, and modified bitumen for Dubuque properties?
TPO (thermoplastic polyolefin) uses heat-welded seams and a white reflective surface — the current industry standard for new commercial and residential flat roofs, best for energy efficiency. EPDM (ethylene propylene diene monomer) is a rubber membrane installed with taped or adhesive seams — very durable and forgiving, widely used on residential flat roofs for decades. Modified bitumen is a reinforced asphalt sheet applied by torch or cold adhesive — economical and familiar to many local Dubuque contractors, though it runs warmer than TPO and may require more frequent coating. Cost, pitch, and building type typically dictate the right choice — a Dubuque flat-roof specialist can walk you through the tradeoffs for your specific structure.
Do I need a permit for flat roof in Iowa?
Permit requirements depend on the property, scope of work and local jurisdiction. Check with the city or county building department and confirm who will obtain any required permit before work starts.

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Figures above: NOAA Storm Events Database (hail, wind, tornado; county of the city, 2014–2026), U.S. Census Bureau American Community Survey 5-year estimates (housing), NASA POWER (temperature and rain, 2014–2023). Prices: our published price method. How we collect data.