Johnson City, TN · Flat Roof

Flat Roof Contractors in Johnson City, Tennessee

Commercial or residential flat roof — compare local roofing companies. 26 local roofers listed, 1 verified.

Short answer: Flat and low-slope roofs in Johnson City 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 Johnson City: 4.7 heavy-rain days a year (1 inch+). 1 of the roofers below have a license we checked; for any other, ask for a license number and a certificate of insurance.

Get a free quote See Johnson City in numbers
  • 4.7heavy-rain days a year (1 inch+)
  • 46.7 inrain a year
  • 14days a year at 90°F or hotter
  • 42%of homes are not single-family houses

How much life is left in my Johnson City roof?

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

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Flat and low-slope roofs in Johnson City perform reliably when drainage is maintained and membrane seams and penetrations are inspected annually — most flat roof leaks trace to neglected drains or failed seals around HVAC units and vents. Common flat roof systems in Johnson City 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.

Johnson City in numbers

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

  • #169of 209Johnson City ranks #169 of the 209 cities we cover for largest hailstone on record (low end).
  • #161of 209Johnson City ranks #161 of the 209 cities we cover for damaging thunderstorm-wind days (low end).

Hail reports per year in the county

Hail events per year in the county, 2019 to 2026* 1 2019 1 2020 4 2021 3 2022 2 2023 1 2024 1 2026*
Hail events per year in the county, 2019 to 2026*
20191
20201
20214
20223
20232
20241
2026*1

13 recorded events across 6 full years plus 2026 to June represented in the data. 2021 had the most events among represented full years: 4.

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: 2025. Missing rows are not treated as zero; no annual average is shown.

Source: NOAA hail events, county level · data as of 2019–2026*

When storms hit Johnson City

Hail reports by month in the county, all years combined 0 Jan 0 Feb 3 Mar 0 Apr 6 May 4 Jun 3 Jul 1 Aug 0 Sep 0 Oct 0 Nov 0 Dec
Hail reports by month in the county, all years combined
Jan0
Feb0
Mar3
Apr0
May6
Jun4
Jul3
Aug1
Sep0
Oct0
Nov0
Dec0

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

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

Roofing trade around Johnson City

  • 3 roofing companies with payroll in the county.
  • A roofer's median pay here is $45,690 a year (Tennessee).
Source: Census CBP · data as of 2023 Source: BLS OEWS, roofers · data as of May 2025

Johnson City storm record: Washington County

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

  • 1856Founded
  • 1,634 ft (498 m)Elevation

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

1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1 in hail1.25 in hail1.25 in hail1.25 in hail1.25 in hail1.5 in hail1.5 in hail1.75 in hail1.75 in hail1.75 in hail Johnson City
  • 141 to 1.74 in
  • 31.75 to 2.74 in, golf ball to tennis ball
  • 02.75 in and up, baseball

Largest plotted stone: 1.75 in. Bigger dots are bigger stones.

17 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
May 19, 2022 1.75 in, about the size of a golf ball 3 Gray
July 19, 2016 1.75 in, about the size of a golf ball 2 Jonesboro
July 27, 2014 1.75 in, about the size of a golf ball 1 Gray
“Several rounds of thunderstorms brought large hail and some damaging wind gusts to portions of northeast Tennessee, starting in the late evening hours of May 18 and continuing through the afternoon of May 19. Most of the reports were of large hail, with the largest being the size of a hen egg.”
National Weather Service report, May 19, 2022
Source: NOAA Storm Events Database · data as of 2014–2026

Last big hail on record

May 19, 2022

Hail of 1.75 inches (golf ball) or larger fell on 3 days in 2014–2026. Our records end where NOAA's do, so a newer storm may not be listed yet.

Strongest tornado

EF0 · July 27, 2014

It stayed on the ground for 7.1 miles and was up to 300 yards wide. An EF1 tornado occurred approximately three miles southwest of Colonial Heights with estimated peak winds around 100 mph along a 7.1 mile long path 300 yards in width. There were houses along the path with structural damage while one large barn was heavily damaged.

Strongest thunderstorm gust

100 mph · July 27, 2014

What it means for flat roof

Flat and low-slope roofs hold hail on the surface instead of letting it bounce. With 1.75-inch hail on record in Washington 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 Johnson City

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

That typical price is about 4.1% of the median Johnson City home value ($238,000).

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

Full Johnson City cost guide by material →

Roofers in Johnson City, TN

26 listed, first 20 shown. 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 Johnson City: questions

How do I find a flat roof company in Johnson City?
PickARoofer lists roofing companies serving Johnson City, TN. 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 Johnson City?
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 Johnson City?
May is the worst month: 35% of the 17 hail reports NOAA holds for the county came then. Reports run from March to August. Book the inspection before March, while crews still have open dates.
How big does hail get near Johnson City?
The largest hail NOAA logged near Johnson City measured 1.75 inches, about the size of a golf ball. Hail of an inch or more fell on 11 days in the same record. The biggest day was May 19, 2022, with 3 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 Johnson City, and does it matter for the roof?
The median home in Johnson City was built in 1983, and 46.4% 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 77 freeze-thaw days a year, which loosens flashing and sealant.
What does roofing cost in Johnson City?
For an average 2,000 sq ft home we model asphalt-shingle re-roof at $6,090 to $13,485 in Johnson City, around $9,800 in the middle. That is about 4.1% of the median home value of $238,000. Your quote moves with roof size, pitch and how many layers come off.
How many roofing companies work around Johnson City?
The Census Bureau counts 3 roofing companies with payroll in Washington County. A roofer's median pay is $45,690 a year (BLS).
How long does a flat roof last in Johnson City?
A properly installed flat roof in Johnson City lasts 15 to 25 years depending on material and maintenance. TPO and EPDM systems at the higher end; modified bitumen at the lower end without coating renewal. The biggest variable is drainage maintenance: a flat roof that drains properly and gets annual inspections reaches its rated lifespan; one with chronically clogged drains fails years early. Commercial buildings and multi-family properties benefit from a maintenance agreement that includes two drain clearings per year.
What is the difference between TPO, EPDM, and modified bitumen for Johnson City 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 Johnson City contractors, though it runs warmer than TPO and may require more frequent coating. Cost, pitch, and building type typically dictate the right choice — a Johnson City flat-roof specialist can walk you through the tradeoffs for your specific structure.
Do I need a permit for flat roof in Tennessee?
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.