What Is a FORTIFIED Roof? Cost, Grants and NC Insurance Discounts

IBHS describes FORTIFIED as a voluntary construction and re-roofing program that strengthens homes against high winds, hail and hurricanes. IBHS is a nonprofit research group supported by property insurers and reinsurers, and the standard comes from its lab and field research (IBHS FAQ).

The key word is *verified*. Anyone can ask a roofer to follow the standard. But to get an official FORTIFIED designation, the one insurers and grant programs ask for, the work has to be documented by a FORTIFIED Evaluator and reviewed by IBHS. Without that verification, IBHS says you won't receive a designation or qualify for the financial benefits.

Qualifying homes include single-family houses (including modular), duplexes, HUD-rated manufactured homes built after 1994, and townhouses where each unit runs from foundation to roof.

A FORTIFIED Roof adds specific requirements to a normal tear-off and reroof. According to IBHS's FORTIFIED Roof page:

• Sealed roof deck. The seams in the roof deck are sealed, so if wind strips the shingles, rain can't pour through the gaps. IBHS says every inch of rain on an exposed deck can let in the equivalent of nine bathtubs of water, and sealing the seams can cut that water intrusion by up to 95%.
• Ring-shank nails in an enhanced pattern. Instead of common smooth nails, the deck is fastened with 8d ring-shank nails at closer spacing. IBHS testing shows this can double the uplift the roof can withstand.
• Stronger edges. A wider drip edge and a fully adhered starter strip, because roof damage often starts when wind gets under the edge.
• Tested and rated roof covers. Shingles must meet the highest wind ratings (ASTM D3161 Class F or ASTM D7158 Class H). Metal, tile and low-slope systems must be tested for the design pressures at your site.
• Wind and rain-resistant attic vents, so wind-driven rain can't enter through the vents.

FORTIFIED Home has three levels, and each one includes everything in the level below it.

• FORTIFIED Roof: the roof upgrades above. This is the level a home can reach during a reroof.
• FORTIFIED Silver: everything in Roof, plus bracing for gable ends, anchored chimneys and attached structures like porches and carports, and pressure-rated garage doors. In hurricane-prone areas it also covers protection for windows and doors.
• FORTIFIED Gold: everything in Silver, plus an engineered continuous load path, a specific plan for how the roof ties to the walls and the walls tie to the foundation.

IBHS lays out the process in four steps:

1. Assemble your team. Pick a contractor and an evaluator from the IBHS directory on fortifiedhome.org.
2. Build or reroof to the standard. The contractor installs the required upgrades.
3. Verification and review. The evaluator documents the job, such as photos of material labels and installation details, and submits it to IBHS.
4. Designation issued. IBHS reviews the file and sends the certificate to the evaluator, who delivers it to you.

The evaluator is an independent third party, not your roofer. IBHS says you should always be free to choose your own, even if your contractor has a preferred one. In Eastern North Carolina, NC Fortified is a FORTIFIED evaluation company that inspects roofs to IBHS standards, prepares the certification paperwork and handles renewals.

The certificate lasts five years from the date it is issued. To keep it, you need a redesignation inspection. IBHS allows renewal up to one year after expiration, and the expiration date is printed on the certificate.

There are two parts to the cost: the upgrade and the evaluation. For the upgrade, IBHS says that when re-roofing a 2,000-square-foot home, the extra cost is typically $1,000 to $3,000 (IBHS FAQ). That is on top of the reroof itself, and it varies with your home's design and local code. For new construction, IBHS says building to FORTIFIED Gold can add 1% to 3% to the total budget.

The evaluation is separate. As one example, NC Fortified's pricing page lists $655 for a FORTIFIED Roof evaluation ($600 plus a $55 IBHS audit fee). It also notes that NCIUA pays the evaluation fee for grant recipients in its two grant programs.

When you collect bids, ask each roofer to list the FORTIFIED upgrade separately from the base roof replacement. NCIUA recommends this so you can see what the upgrade costs. Carolina Trophy Roofs, which does roofing work across Eastern North Carolina, has a FORTIFIED roofing page that walks through the requirements and the questions to ask any contractor before signing.

North Carolina's grants come from NCIUA, the coastal property insurance pool, and are only for NCIUA policyholders. There are two programs:

• Strengthen Your Roof: up to $10,000 per qualifying property for homes on the Outer Banks and barrier islands (rating territories 110 and 120). You need an active NCIUA homeowners, homeowners wind, dwelling or dwelling wind policy (program rules).
• Strengthen Your Coastal Roof: up to $6,000 for eligible NCIUA policyholders in rating territories 130 through 160, covering Beaufort, Brunswick, Camden, Carteret, Chowan, Craven, Currituck, Dare, Hyde, Jones, New Hanover, Onslow, Pamlico, Pasquotank, Pender, Perquimans, Tyrrell and Washington counties (program site).

Both work the same way. You apply online with at least four photos of the outside of the home. NCIUA checks your eligibility, then IBHS confirms the home qualifies. Once approved, you have 18 months to complete the FORTIFIED Roof and get the designation. NCIUA pays the grant to you after it receives the certificate, the contractor's final invoice and a W-9. You pay the contractor.

• Grants are first come, first served until the money runs out. Check the program site to see whether funds are still available.
• If the roof costs less than the maximum, the grant is limited to the cost of the roof.
• NCIUA says grant money is currently treated as taxable income.
• The grant is for homeowners replacing a roof by choice. You can't get both an NCIUA insurance claim payment for a FORTIFIED Roof and the grant.
• Starting November 1, 2025, Strengthen Your Roof requires installation by a Certified FORTIFIED Roofing Contractor.

The NC Department of Insurance says mitigation credits (discounts) may be available on qualifying homeowners policies in the state's beach and coastal territories. The credits reduce the wind and hail premium, with different levels depending on the home's features. A FORTIFIED designation could make you eligible.

IBHS adds that the discount depends on where the home is and which FORTIFIED level it has, and that many insurers require you to renew the designation every five years to keep it. There is no single discount figure, so ask your agent for a written quote with and without the designation before you commit.