Class 4 impact-resistant shingles are the highest impact rating shingles carry, and in Justin (squarely in DFW hail territory) they are the upgrade that most often pays for itself through insurance premium discounts.
Class 4 refers to the UL 2218 impact standard: the shingle resists cracking under a steel-ball impact test that approximates severe hail. In Justin, that matters twice. You get fewer storm-damaged roofs over the system’s life, and many Texas carriers discount wind/hail premiums for homes roofed with certified Class 4 products. Ask your carrier for their specific discount before you decide; we document the product certification for your policy file either way.
We install and service class 4 impact-resistant shingles across Justin and the surrounding DFW communities. Expect free written estimates, documented inspections, and honest guidance on whether this system actually fits your home and budget.
The Justin specifics
There is a Justin version of the Class 4 Impact-Resistant Shingles decision, and it is not the generic one. A large share of homes here are young enough that their original builder-grade roofs are only now meeting their first serious hail test. For those roofs, the asphalt decision is mostly a grade decision: builder three-tab versus architectural versus Class 4, each a different answer to the same hail math.
The permit runs through Justin’s building department; we handle the filing and the inspection scheduling as part of the job. When the next core drops through Denton County, Class 4 shingles take bruises where standard laminates open up. The difference shows at the adjuster meeting. Because Denton, Lewisville, and Flower Mound share our dispatch routes, examples of this exact system nearby are easy to arrange. If the roof is not a fit for this system, the inspection says so, and that answer is free too.
THE SYSTEM
Class 4 Impact-Resistant Shingles, up close.
Class 4 impact-resistant. The standard architectural look over an SBS-modified mat that bruises instead of fracturing.
PUBLIC RECORD
The local record behind Class 4 Impact-Resistant Shingles in Justin
How a roof system holds up in Justin depends on the storms it has to take and the houses it sits on. Here is what the public record shows.
15
Hail days, 1 in.+ since 2006
5
Golf-ball-size hail days
3.4 in.
Largest stone on record
2011
Median year homes built
Hail near Justin
NOAA's Storm Events Database lists 15 days since 2006 with hail one inch or larger reported within 4 miles of Justin. On 5 of those days, the stones were golf ball size or bigger. Hail that size was reported in 9 of the last 20 years. The largest stones on record nearby measured 3.4 inches (teacup size) on April 1, 2024. The most recent report: 1-inch hail on May 24, 2026.
April 1, 2024: 3.4-inch hail (teacup size)
March 26, 2017: 2.75-inch hail (baseball size)
March 24, 2021: 2-inch hail (hen egg size)
October 2, 2014: 1.75-inch hail (golf ball size)
March 30, 2009: 1.75-inch hail (golf ball size)
How old Justin homes are
Justin is young by roofing standards: the median home was built in 2011, and 52% of its 1,842 housing units date to 2010 or later. Many of those homes still have the roof the builder installed, now working through its first hail seasons.
Sources: NOAA National Centers for Environmental Information, Storm Events Database (hail reports since 2006 within 4 miles of Justin); U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Data pulled September 2026.
Common questions about class 4 impact-resistant shingles in Justin
Do Class 4 shingles make my roof hail-proof in Justin?
No. Class 4 is the highest impact rating, not immunity. Large hail can damage any roof. The rating means significantly better resistance to the hail sizes DFW sees most often.
How much do I save on insurance with Class 4 in Justin?
It varies by carrier and policy. Texas insurers commonly discount the wind/hail portion of premiums for certified Class 4 roofs. Your agent can quote the exact discount; bring the product certification we provide.
Is upgrading from builder-grade shingles worth it in Justin?
Usually at the first replacement or claim: Class 4 impact-rated systems earn many Texas carriers' premium discounts, and newer communities' HOA standards generally approve them easily. The math works hardest on homes facing decades of DFW hail.
How often does hail hit Justin?
NOAA's Storm Events Database lists 15 days since 2006 with hail one inch or larger reported within 4 miles of Justin, including 5 days with golf ball size stones or bigger. Hail that size was reported in 9 of the last 20 years. The most recent report was 1-inch hail on May 24, 2026.
How old are most homes in Justin?
The median home in Justin was built in 2011, according to the U.S. Census Bureau's American Community Survey. 13% of the city's housing units predate 1980 and 52% were built in 2010 or later. Many homes here still have their original builder-installed roof.
