Compare St. Louis FORTIFIED assemblies, hail-supplement requirements, named shingles, evaluator documentation, and actual upgrade scopes without assumed discounts.
FORTIFIED and hail performance are separate specifications
A St. Louis roof proposal can address wind, water intrusion, and hail without treating those hazards as interchangeable. Ask for the roof-system specification and the selected covering’s performance evidence separately. A Class 4 product label is not a FORTIFIED designation, and the FORTIFIED name alone does not describe every hail-related requirement.
The useful buying decision is which documented assembly fits the house and which optional features are included. Start with the roof’s condition, measured area, and evaluator assessment rather than a promised percentage savings or a generic “storm-proof” package.
Ask which standard and supplement the quote includes
IBHS’s current technical documents provide the applicable FORTIFIED requirements. Ask the evaluator which standard, designation, and optional hail supplement apply to your proposal. Have the contractor name the chosen roof covering, deck-sealing approach, fastening, and edge details in the written scope.
Agree on the evaluator’s evidence needs before installation. The contractor should know which details must be documented before they disappear beneath the next layer. A product invoice and finished roof photo do not independently establish that the completed assembly meets the required standard.
Do not use Class 4 as a complete hail comparison
IBHS publishes named-product hail performance ratings. Use those results to compare products and ask the evaluator about the hail supplement’s current criteria. Do not assume every product with the same laboratory class performs identically under realistic impacts or qualifies for the same program.
Ask for the exact product name on the proposal and delivery record. Keep manufacturer warranty exclusions, the selected product’s rating, and insurer treatment separate. The material selector helps organize those questions without declaring one roof immune to future damage.
Compare a base replacement and the requested upgrades
| Decision | Evidence to obtain | Who resolves it |
|---|---|---|
| Base roof | Measured area, removal, covering, flashing, ventilation | Contractor |
| FORTIFIED work | Named assembly details beyond base scope | Contractor and evaluator |
| Hail option | Named product and current supplement requirements | Evaluator / manufacturer |
| Concealed damage | Photo evidence, unit prices, approval process | Contractor and owner |
Request a written alternative that identifies the additional work and evaluation costs. There is no verified universal St. Louis uplift percentage in this guide. Roof geometry, existing deck condition, and the starting scope affect the difference. Use our planning estimator for a baseline, then replace it with itemized project quotes.
A reroof normally exposes the deck; it does not mean the whole deck is automatically replaced. Ask which areas can remain, what repair is needed, and how additional findings are priced. This distinction matters when comparing a storm repair scope with a resilience upgrade.
Get Missouri coverage answers from the insurer
The Missouri Department of Insurance’s roof coverage guidance explains important differences in settlement methods. Your policy and insurer determine coverage and any premium treatment. Ask for the applicable deductible, roof endorsement, and written response to the exact proposed upgrade; do not assume a Class 4 or FORTIFIED selection creates a fixed discount.
If an insurance claim is involved, keep the covered-damage scope separate from optional upgrades and disputed items. A contractor can document construction requirements. It cannot promise the insurer will pay every improvement or that the homeowner’s only expense will be the deductible.
Request a project-specific assessment
Request a St. Louis roof inspection with a request to compare standard replacement and the specific FORTIFIED/hail options you are considering. Ask who will coordinate evaluation, permits, and closeout. Keep the final designation distinct from a pending application.
For permitting questions, review our City and County permit guide. The decision should leave you with a defined assembly, named product, realistic funding plan, and clear documentation responsibilities—not an unsupported package price or a promise that a stronger roof cannot be damaged.
Common questions
Frequently asked
No. Class 4 is a product impact classification. FORTIFIED is a verified roof-system standard, and its optional hail supplement has specific requirements.
Published by
Lapeyre Roofing Editorial Team
Homeowner guides
Our editorial team publishes homeowner guides with sources linked in the article. For a recommendation about your roof, request an inspection of the property.
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