Class 4 Impact-Resistant Roofing in Oklahoma

What Class 4 Means

Class 4 is the highest impact-resistance rating in the UL 2218 test standard commonly used for asphalt roofing products. The rating indicates that a tested product resisted cracking after controlled impacts. It does not make a roof hail-proof, and performance still depends on storm severity, roof age, deck condition, ventilation, installation quality, and the specific product selected.

When Impact-Resistant Roofing Makes Sense

Class 4 roofing is worth considering when a property has repeated hail exposure, the owner plans to keep the building long term, or an insurer offers a meaningful premium credit for an approved product. It can also be a practical upgrade during an already-needed replacement because the additional cost is evaluated against the full service life of the roof.

Products and Documentation

Available systems may include polymer-modified or reinforced architectural shingles and qualifying metal assemblies. The written estimate identifies the manufacturer, product line, impact classification, underlayment, ventilation work, flashing, accessories, and warranty terms. Homeowners seeking an insurance discount should confirm eligibility with their carrier before product selection and keep the final invoice and product documentation.

Our Installation Approach

1. Inspect the roof, decking, flashings, ventilation, and drainage.
2. Compare suitable impact-rated products and total installed cost.
3. Remove existing materials and replace deteriorated decking as authorized.
4. Install the specified underlayment, flashings, shingles, and ventilation components.
5. Complete cleanup, final inspection, and product documentation.

Questions to Ask Before Upgrading

• Is the exact product listed as Class 4, not just marketed as impact resistant?
• Does your insurer recognize the product and require a certification form?
• Does the policy exclude cosmetic damage to roofing?
• How do the material warranty and workmanship warranty differ?
• Is ventilation or decking work needed for the new system?

Repair or Replace After Hail?

An inspection should separate functional damage from normal wear and cosmetic marks. Localized damage may be repairable when matching materials are available and the surrounding roof remains serviceable. Widespread impact damage, brittle shingles, compromised flashing, or an aging system may support replacement. Oklahoma Exteriors documents observed conditions and provides a construction recommendation; coverage decisions remain with the property owner and insurance carrier.