Guides

Explainers on the mechanics of flood insurance: how the federal program is structured, what the zone designations mean, and how the rules that govern coverage work. Guides describe mechanisms and cite sources — they do not make predictions or product recommendations.

• Assumable flood policies: keeping the seller's NFIP premium at closing How an NFIP policy transfers to a home buyer, why that can preserve a below-full-risk premium, and what the assignment does and does not carry over.
• Do I need flood insurance? What the federal rules actually require When flood insurance is legally required, when it is optional, and the neutral factors that frame the decision — without predictions or sales language.
• Does homeowners insurance cover flooding? Where the water exclusion draws the line Why homeowners policies exclude flood, which water damage they still cover, and how the flood definition decides hurricane claims.
• Does renters insurance cover flooding? What the standard forms exclude Why standard renters policies exclude flood damage, what water damage they do cover, and how contents-only flood coverage works for tenants.
• Elevation certificates: what they document and when they still matter What an elevation certificate records, who prepares one, what it costs to obtain, and its changed role under Risk Rating 2.0 — optional for rating, still central to permits and LOMAs.
• Flood insurance deductibles: how the options work How NFIP deductibles are structured — separate building and contents deductibles, the available range, minimums, and how the choice interacts with lenders and premiums.
• Flood insurance for businesses: how commercial coverage is structured How flood insurance works for commercial buildings — the NFIP's non-residential limits and form, what it excludes, and the role of private and excess markets.
• Flood insurance for condos: the RCBAP, unit policies, and the gap between them How condo flood insurance is structured — the association's RCBAP, the unit owner's policy, the coinsurance penalty, and where assessments fall through the gap.
• Flood Zone X: is insurance required, and what does the zone actually mean? What Zone X designates on a flood map, when lenders can still require coverage there, and how many policyholders in the covered states are outside high-risk zones.
• How flood insurance claims work: from notice of loss to payment The NFIP claims process step by step — notification, the adjuster's role, the proof of loss deadline, payment, and the appeal options after a denial.
• How much is flood insurance? Actual premiums from federal policy records What NFIP policyholders actually pay in Florida, Texas, and Louisiana, computed from FEMA's public policy records — medians, means, and what drives the differences.
• How to read a flood map: FIRM panels, zones, and elevations How to find the effective flood map for an address and read what it says — zone boundaries, base flood elevations, floodways, panel dates, and pending changes.
• Increased Cost of Compliance (ICC): the $30,000 rebuilding-rules coverage How ICC coverage works — the substantial damage trigger, the four eligible mitigation activities, the limit, and how it combines with the building claim.
• Is flood insurance worth it? A framework built on the historical record A neutral way to weigh flood insurance: what it costs in the covered states, what the claims record shows, and the factors that frame the decision.
• Letter of Map Amendment (LOMA): formally correcting a flood map How the LOMA process removes a structure from the Special Flood Hazard Area — who qualifies, what evidence it takes, what it costs, and what changes afterward.
• NFIP lapse FAQ: what happens when the program's authorization expires What stops, what continues, and what resumes when Congress lets the National Flood Insurance Program's authorization lapse — the mechanics, not the politics.
• Private vs. NFIP flood insurance: the coverage differences that are structural Where federal and private flood policies differ by design — limits, waiting periods, contract terms, lender acceptance — described neutrally, without rankings.
• Risk Rating 2.0 explained: how NFIP premiums are actually set The rating methodology behind current NFIP premiums — what variables it uses, what changed from the old zone-based system, and what the statutory caps still control.
• The flood insurance glide path: how the 18% annual cap works The statutory mechanism that limits how fast NFIP renewal premiums can rise — the caps, which policies they apply to, and what resets them.
• The flood insurance waiting period: 30 days, and the exceptions that matter How the statutory waiting period between buying NFIP coverage and having it take effect works, the loan-closing and map-change exceptions, and how private policies differ.
• The mandatory purchase requirement: when federal law requires flood insurance The lender-enforced flood insurance mandate — what triggers it, how much coverage it requires, escrow and force-placement rules, and its exact boundaries.
• The Write Your Own program: why private insurers sell federal flood policies How the WYO arrangement works — what the private insurer does, what FEMA does, why NFIP prices are identical everywhere, and how WYO differs from private flood insurance.
• What does flood insurance cover? The federal policy, item by item What the Standard Flood Insurance Policy pays for — building and contents coverage, valuation rules, basement limitations, and the exclusions that surprise people.
• What is a Special Flood Hazard Area? The SFHA, defined What the SFHA designation means on a flood map, which zones are inside it, what legal obligations attach to it, and what the probability standard does and doesn't say.
• What is the NFIP? The National Flood Insurance Program, explained How the National Flood Insurance Program works: who runs it, how coverage is structured, what it costs to participate, and where its public data comes from.

More guides are in preparation. Data pages by state and the methodology are already live.