Boulder County, Colorado · Class 4 Roofing
Class 4 Impact Resistant Roof Installer in Boulder County
Every shingle roof we install is Class 4 impact rated. Here is what that means, what it costs, and why it matters in Boulder County hail country.
We Only Install Class 4 Shingles
Josh Brooks Construction installs only Class 4 impact-resistant shingles: Owens Corning Duration STORM or better, with all new metals and flashing on every roof. We do not install standard shingles at all. We call it the Josh Brooks Class 4 Standard™.
What Does a Class 4 Roof Cost?
A Class 4 shingle roof costs about $1,000 per square (100 sq ft) installed with Josh Brooks Construction, including all new metals and flashing. A typical 25-square Boulder County roof is about $25,000.
Why Class 4 Matters in Boulder County
- Class 4 is the highest impact rating for shingles, tested against steel balls dropped onto the shingle
- It holds up better to the hail that hits Boulder County most summers
- Many insurance companies offer a premium discount for Class 4 roofs
- Fewer claims over the life of the roof
Read more about Owens Corning Duration STORM Class 4 shingles.
Hail Damage and Insurance Claims
If hail already hit your roof, we provide free inspections, document the damage and meet your adjuster. See hail damage roof repair and insurance claim roof replacement.
Why Boulder County Homeowners Hire Us
- Licensed general contractor: Boulder County CON-24-0152 (Class C), Jefferson County Class C, Douglas County Class A
- In business since 2014; Josh has worked in construction since 1996
- One contract covers every trade, so there is no juggling separate subs
- Free, itemized written estimates before any work starts
- Senior and veteran discounts on every project
Frequently Asked Questions
What is a Class 4 roof?
A Class 4 roof uses shingles with the highest impact-resistance rating, tested by dropping steel balls onto the shingle. They hold up better to hail.
How much does a Class 4 roof cost in Boulder County?
About $1,000 per square (100 sq ft) installed with Josh Brooks Construction, including all new metals and flashing. A 25-square roof is about $25,000.
Do Class 4 shingles lower insurance premiums?
Many Colorado insurers offer a discount for Class 4 impact-resistant roofs. Check with your insurance company for your exact discount.
Get a Free Written Estimate in Boulder County
Josh Brooks Construction and Renovation Inc. has been in business since 2014, and Josh has worked in construction since 1996. One licensed contractor, one contract, and the owner accountable for the job. Senior and veteran discounts on every project (details).
Call 720-828-7997 or text 720-453-5095.
Colorado Class 4 shingle insurance discount: what the law says
- Colorado law (CRS 10-4-110.8) requires insurers to factor impact-resistant roofing into their premium rates — the legal basis for the Class 4 discount.
- In June 2026, SB26-155 created the Strengthen Colorado Homes Enterprise; starting 2027, insurers must prove resilient-roof savings actually reach homeowners.
- Carrier discounts typically run 15–35% (about 28% on average), applied to the dwelling or the wind/hail portion of the premium.
- Class 4 is the top rating under UL 2218: a 2-inch steel ball dropped 20 ft must not crack the shingle.
- The upgrade typically pays for itself in roughly 3–7 years through premium savings.
Sources: Colorado Revised Statutes 10-4-110.8; Colorado SB26-155 (2026); UL 2218 standard; Colorado Division of Insurance / RMIIA (2026).
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