Class IV impact-resistant shingles for commercial and institutional roofs.
UL 2218 Class 4 shingles that stand up to Montgomery County hail, and give your insurance carrier a documented reason to lower your premium.
Not every commercial building is flat. Garden-style apartments, senior living campuses, churches, schools, hotels, and low-rise offices all have sloped shingle roofs. In this hail belt, those roofs are usually the biggest recurring insurance claim on the property. A Class 4 shingle system helps in two ways: fewer claims, and a premium discount that adds up for the life of the roof. Call (281) 948-2208 or schedule an assessment.
P91 Zero-Leak GuaranteeWhat we deliver
- UL 2218 Class 4 rated systems — the highest impact rating there is
- Malarkey Vista AR, GAF Timberline AS II, Owens Corning Duration FLEX, CertainTeed NorthGate ClimateFlex, Atlas StormMaster Shake
- Manufacturer Class 4 certificate and photo documentation supplied for your carrier
- Full tear-off, deck inspection, new synthetic underlayment, new flashing and pipe boots
- Low-slope sections properly detailed with the right membrane, not shingled over
- Phased scheduling on occupied buildings — no section left open overnight
- Proven at scale: 40,000+ sq ft on an occupied 108-bed care facility
- 5-year P91 workmanship warranty plus the manufacturer's product warranty
Why Class 4 pays on a commercial asset
On a single home, upgrading to Class 4 is a nice extra. On a 40,000-square-foot institutional roof, it's a financial decision. The insurance discount applies every year, the deductible you avoid on a borderline hail claim can be five or six figures, and avoiding disruption to an occupied building saves money that never shows up on an invoice. We price the Class 4 option next to the standard option, so ownership can compare both before deciding.
Getting the carrier credit actually applied
Insurance underwriters won't just take a contractor's word for it. We give you the manufacturer's Class 4 certificate naming the exact product installed, dated installation photos, and the final invoice. That's the package your agent submits to get the wind and hail discount applied. The discount amount is set by your carrier and policy, not by us, so confirm the number with your agent before deciding on the upgrade.
The products we specify
Malarkey Vista AR uses a rubberized asphalt that stays flexible and absorbs impact instead of cracking. This is what we installed on the Conroe care facility. GAF Timberline AS II, Owens Corning Duration FLEX, CertainTeed NorthGate ClimateFlex, and Atlas StormMaster Shake are the other Class 4 shingles we install regularly. The choice comes down to budget, color options, and which manufacturer warranty ownership wants.
Where shingles end and membrane begins
Most institutional buildings mix roof types. They might have a sloped shingle roof with a flat section over an entry canopy, a mechanical area, or a rear addition. Class 4 shingles only belong on the sloped portion. The flat sections get TPO, PVC or modified bitumen, and we properly detail where the two meet. That meeting point is where most of the leaks we're called to diagnose actually start.
Installing over an occupied facility
We replaced about 40,000 square feet of Class IV shingle on an occupied 108-bed skilled nursing center in Conroe, between spring storms, without disrupting residents. The case study shows how we phased the work, with photos. We use the same approach on multi-family portfolios and senior living campuses.
FAQ
What does UL 2218 Class 4 actually mean?+
UL 2218 is a lab test that drops a two-inch steel ball onto the shingle twice, in the same spot, from twenty feet up. A Class 4 rating means the shingle didn't crack or split. It's the highest of four impact ratings. It's a lab test, not a guarantee against every hailstone, but it's the standard insurance carriers recognize.
How much can a Class 4 roof reduce commercial insurance premiums?+
Most Texas insurance carriers give a wind and hail discount for a documented Class 4 roof, and on a large building that discount adds up every year the roof is in place. The exact amount depends on your carrier and policy. We give you the manufacturer certificate and installation records your agent needs to apply the discount.
Which Class 4 shingles do you install?+
Malarkey Vista AR, GAF Timberline AS II, Owens Corning Duration FLEX, CertainTeed NorthGate ClimateFlex, and Atlas StormMaster Shake. All of these carry the UL 2218 Class 4 rating. We pick one based on your budget, color options, and the manufacturer warranty you want.
Does Class 4 apply to a flat or low-slope building?+
No. Shingles need a sloped roof to work properly. Class 4 shingles go on the sloped sections of commercial and institutional buildings, like garden-style apartments, senior living, churches, schools, offices, and hotels. For flat or low-slope sections, we use TPO, PVC, or modified bitumen roofing instead, and we detail where the two meet.
Can you install over an occupied building?+
Yes. We do the work in phases, so each section is torn off and sealed the same day. We keep entrances and driveways clear, and schedule the noisy parts around your business hours.
What documentation do we get for the carrier?+
You get the manufacturer's Class 4 certificate naming the exact product installed, dated photos of the installation, and the final invoice. This is the paperwork agents and underwriters need to apply the discount.
Planning a commercial roof project?
We'll give you an assessment, a written condition report, and a budget plan you can take to ownership. Our crews are fully insured, and every job has a 5-year workmanship warranty.