What a FORTIFIED roof actually is
FORTIFIED is an engineering standard from the Insurance Institute for Business & Home Safety (IBHS), built from decades of studying why roofs fail in storms. It is not a shingle brand or a marketing label; it's a checklist of construction details, verified by an independent evaluator.
The four details that matter
A sealed roof deck
When wind strips shingles off an ordinary roof, rain pours straight through the wooden decking's seams into your house. FORTIFIED seals those seams with self-adhering membrane or sealed code-plus underlayment, so a shingle-stripped roof sheds water instead of flooding the attic. This is the single biggest difference in how homes survive the days after a storm.
Ring-shank nails
Threaded ring-shank nails grip the framing far harder than the smooth nails common in ordinary construction — Kentucky's Department of Insurance describes it as nearly doubling the roof's strength against wind. Same labor, marginally more expensive nails.
Locked-down edges
Roof failures usually start at the edge, where wind gets underneath and peels. The standard requires a wider drip edge and a fully adhered starter strip so the wind never gets a fingerhold.
Impact-resistant shingles (hail designation)
The High Wind and Hail designation adds shingles rated to withstand hail up to two inches — relevant across Kentucky's hail corridor.
Roof, Silver, Gold
| Level | Covers | SKH grant? |
|---|---|---|
| FORTIFIED Roof | The roof system: sealed deck, attachment, edges. | Yes — this is what the grant funds. |
| Silver | Adds gable-end bracing, anchored chimneys, pressure-rated garage doors, anchored porches/carports. | No |
| Gold | Engineered continuous load path from roof to foundation. | No |
More than 100,000 homes nationally carry a FORTIFIED designation. Certification is per-roof, verified by an independent evaluator, lasts five years, and transfers when the home sells.
Sources: KY DOI program announcement,IBHS FORTIFIED Roof,Silver, Gold,IBHS 100,000 designations. FORTIFIED is a program and trademark of IBHS; this site is not affiliated with IBHS.