FORTIFIED Roof is a voluntary construction standard from the Insurance Institute for Business & Home Safety (IBHS) that goes beyond typical building code. It calls for a sealed roof deck, ring-shank nails in an enhanced pattern, stronger roof edges with a wider drip edge and fully adhered starter strip, and roof coverings that meet IBHS requirements, with impact-resistant shingles for its optional hail supplement. A certified roofer installs it, an independent evaluator verifies it, and IBHS issues a designation. In Texas, insurance discounts vary by company, so ask your insurer before you decide.
Houston-area roofs face hurricanes, spring hail and sudden straight-line winds. When a roof has to be replaced anyway, many homeowners ask whether it is worth building it stronger. FORTIFIED is the best-known way to do that with a third-party check. Here is what it requires, how it works in Texas, and how to think about whether it makes sense for your home.
What is a FORTIFIED Roof?
FORTIFIED is a program of IBHS, a research organization funded by the insurance industry. According to IBHS's FORTIFIED FAQ, the FORTIFIED Roof designation targets three main weak points: the connection between the roof deck and the house, the roof edges, and the gaps between roof deck boards. It is the first of three levels for homes: FORTIFIED Roof, FORTIFIED Silver and FORTIFIED Gold. Silver and Gold add protections beyond the roof.
IBHS publishes the requirements in the FORTIFIED Home Standard and updates it over time. There are different requirements for hurricane-prone areas and for areas where high wind and hail are the main threats, and the version that applies to your home depends on where it is.
What does a FORTIFIED Roof require?
IBHS's FORTIFIED Roof page lists the core upgrades:
- A sealed roof deck. The seams between deck boards are sealed, so if shingles blow off, much less rain gets into the attic and the house.
- Better attachment. Ring-shank nails, installed in an enhanced pattern, hold the roof deck to the framing. IBHS says ring-shank nails nearly double the strength of the roof against wind.
- Stronger edges. A wider drip edge and a fully adhered starter strip help keep wind from getting under the roof at the edges, where damage often starts.
- Rated roof coverings. Shingles and other coverings must meet IBHS testing and rating requirements.
- Optional hail supplement. For the hail supplement, roof coverings must be impact resistant. IBHS says asphalt shingles must be rated Good or Excellent in its Hail Impact-Resistant Shingle Ratings, and describes them as better protecting a home from hail up to 2 inches in diameter.
For comparison, standard code already asks for some of these pieces, like drip edge at eaves and rakes. FORTIFIED goes further on how they are installed and checked. Our guide to hail size and roof damage explains why impact ratings matter in a hail-prone area.
How does a home get a FORTIFIED designation?
How a home gets a FORTIFIED designation
| Step | Who | What happens |
|---|---|---|
| 1. Hire a FORTIFIED-certified roofer | You | IBHS requires the roofing contractor to be FORTIFIED certified. Look for certified roofers in the directory on fortifiedhome.org, and confirm any roofer's certification there before signing. |
| 2. Install to the standard | The certified roofer | The roofer follows the FORTIFIED requirements and documents each step, including photos of the deck, nailing and edges before they are covered. |
| 3. Independent evaluation | A FORTIFIED Evaluator (independent third party) | A FORTIFIED Evaluator, an independent, trained third party, reviews the documentation and verifies that the work meets the standard. |
| 4. Designation certificate | IBHS | IBHS issues a certificate. IBHS says initial designations expire five years after they are issued and can be renewed through a redesignation inspection. |
Keep the certificate with your insurance papers. It is what your insurer will ask for if it offers a discount.
Do Texas insurers give discounts for FORTIFIED roofs?
Some do, but there is no single statewide discount you can count on. On September 16, 2026, the Texas Department of Insurance issued Commissioner's Bulletin B-0008-26, which encourages property insurers operating in Texas to develop meaningful, actuarially supported premium discounts for loss mitigation, including building or retrofitting homes to standards like IBHS FORTIFIED Home. The bulletin encourages discounts; it does not set an amount or require every company to offer one.
TDI has also told the Governor that other states have used mitigation grants to help homeowners fortify roofs, and that the Legislature could consider a similar program for Texas. That is an idea for lawmakers, not a program you can apply to today.
The practical step: before you choose materials, ask your insurer whether it offers a FORTIFIED discount, how much, what paperwork it needs, and whether an impact-resistant roof alone earns a discount. If you have a separate windstorm policy on the coast, ask that insurer too; our guide to TWIA windstorm insurance covers coastal coverage.
Is a FORTIFIED Roof worth it in Houston?
It depends on your home, your budget and your insurer. Things to weigh:
- The weather. Houston sees hurricanes, spring hail and severe straight-line winds. A sealed deck and stronger edges address the way wind damage usually starts and the water that follows.
- The added cost. IBHS's FAQ says re-roofing a 2,000-square-foot home to FORTIFIED typically adds $1,000 to $3,000. That is IBHS's estimate; the actual difference for your roof should be confirmed in a written quote.
- The discount. Some insurers offer one and some don't. Ask for the number in writing and compare it with the added cost.
- Timing. The most practical time is when the roof is being replaced anyway, since the deck is exposed.
- Paperwork. You need a certified roofer, an evaluator and, later, a redesignation to keep the certificate current.
If your roof is being replaced after storm damage, keep in mind that an insurance estimate is usually written for a like-kind replacement. Whether any part of a FORTIFIED upgrade is covered depends on your policy; your insurer decides, and the upgrade cost is usually the homeowner's to plan for. Our hurricane season roof checklist covers other ways to prepare, and our article on wind damage in Houston shows what these upgrades are meant to prevent.
FORTIFIED Roof questions
Can I get a FORTIFIED designation on my existing roof?
FORTIFIED Roof is generally done when the roof is replaced, because the deck, nailing and edges have to be installed and photographed before they are covered. Ask a certified roofer about your specific roof.
Is FORTIFIED the same as impact-resistant shingles?
No. Impact-resistant shingles are one part of the optional hail supplement. FORTIFIED also covers how the deck is attached and sealed and how the edges are built, and requires third-party verification.
How long does a FORTIFIED designation last?
IBHS says initial designations expire five years after they are issued. A redesignation inspection is needed to keep it current, which matters if your insurer's discount depends on the certificate.
Planning a roof replacement and weighing your options? Book a free, photo-documented inspection or call Storm Bolt Roofing at 832-860-0262.
