Modified bitumen (mod-bit) is asphalt roofing engineered for low slopes: multi-ply redundancy and a puncture toughness single-ply membranes cannot match.
Modified bitumen gives a Lewisville building a roof with backup: two or more plies of polymer-modified asphalt, so a puncture has to get through redundancy instead of one membrane. It takes rooftop foot traffic well, which suits buildings whose roofs double as equipment yards, and modern cold-applied and self-adhered systems have retired most of the old torch-down fire concerns.
The estimate is free and written, the inspection is documented with photos, and deductibles are never waived under Texas law. Cedar Crest is not a public adjuster.
Layered protection for Lewisville storm seasons
Redundancy earns its cost where hail is routine. The 7-mile radius around Lewisville has logged 14 days of golf-ball hail or larger since 2006, and inch-plus hail in 15 of the last 20 years, with a peak of 3.0 inches on June 11, 2023. On a roof carrying mechanical units and service traffic, a second ply is what keeps a bruise from becoming a leak. We photograph the cap sheet, laps and flashings so the condition is on record before the next storm.
With 63 percent of Lewisville’s homes built between 1980 and 2009, much of the city is at an age where re-roof planning is active. The same Denton County crews work mod-bit roofs in Lake Dallas and Hickory Creek.
THE SYSTEM
Modified Bitumen Roofing, up close.
Modified bitumen. Granule-surfaced torch-down sheets, lapped and sealed, an asphalt system laid flat.
PUBLIC RECORD
The local record behind Modified Bitumen Roofing in Lewisville
How a roof system holds up in Lewisville depends on the storms it has to take and the houses it sits on. Here is what the public record shows.
34
Hail days, 1 in.+ since 2006
14
Golf-ball-size hail days
3 in.
Largest stone on record
1997
Median year homes built
Hail near Lewisville
NOAA's Storm Events Database lists 34 days since 2006 with hail one inch or larger reported within 7 miles of Lewisville. On 14 of those days, the stones were golf ball size or bigger. Hail that size was reported in 15 of the last 20 years. The largest stones on record nearby measured 3 inches (teacup size) on June 11, 2023. The most recent report: 1-inch hail on June 8, 2025.
June 11, 2023: 3-inch hail (teacup size)
April 13, 2019: 2.75-inch hail (baseball size)
June 6, 2018: 2.75-inch hail (baseball size)
March 26, 2017: 2.75-inch hail (baseball size)
April 3, 2012: 2.75-inch hail (baseball size)
How old Lewisville homes are
The median home in Lewisville was built in 1997. A large share of the city's 54,237 housing units are now old enough that original roofs are coming due, while 23% were built in 2010 or later.
Sources: NOAA National Centers for Environmental Information, Storm Events Database (hail reports since 2006 within 7 miles of Lewisville); U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Data pulled September 2026.
Common questions about modified bitumen roofing in Lewisville
Is torch-down roofing safe?
Modern mod-bit rarely needs torches, since cold-applied adhesives and self-adhered sheets install without open flame. Where torch application is used, certified crews and fire-watch protocols are non-negotiable.
When does mod-bit beat single-ply in Lewisville?
Heavy rooftop traffic and equipment service. The multi-ply build tolerates the abuse that punctures single membranes. Buildings whose roofs are working platforms are mod-bit's home field.
Do you install this on shops and outbuildings near Lewisville?
Yes. Barns, workshops, and outbuildings are first-class projects out here, not afterthoughts, and the material conversation (usually metal-forward) covers them alongside the house.
How often does hail hit Lewisville?
NOAA's Storm Events Database lists 34 days since 2006 with hail one inch or larger reported within 7 miles of Lewisville, including 14 days with golf ball size stones or bigger. Hail that size was reported in 15 of the last 20 years. The most recent report was 1-inch hail on June 8, 2025.
How old are most homes in Lewisville?
The median home in Lewisville was built in 1997, according to the U.S. Census Bureau's American Community Survey. 14% of the city's housing units predate 1980 and 23% were built in 2010 or later. Many homes here are reaching the age when original roofs come due.
