Roof Age Data for Roofing Sales

ReroofGen brings available permit history, roof records, and property context into one view so your team can prioritize homes with real replacement potential.

• Finalized roof age backed by county & municipality permit data
• Permit backed replacement history available where county and municipal records exist (90%+ of Florida)

What permit backed roof age actually is

Replacing a roof almost always requires a building permit, and that permit is a public record filed by address with a date on it. ReroofGen collects those records from Florida county and municipal building departments and resolves them to one answer per home: the date of the most recent reroof, the source it came from, and how confident the match is. That date is a recorded government event, not a model's guess about what a roof probably looks like.

Where no reroof permit exists, the home's build year is used as an upper bound and labeled as one. The roof is at most that old; it is never presented as a confirmed install date. That distinction is the whole reason the data can be trusted in a sales conversation.

How coverage is measured, county by county

As of September 4, 2026, ReroofGen holds a dated roof record for 1,977,674 of the 7,017,971 single family homes it tracks across all 67 Florida counties, and 275,977 of those dated roofs are 15 or more years old.

8 counties are measured at 40% coverage or better today: Palm Beach, Orange, Duval, Volusia, Manatee, St. Lucie, Seminole, St. Johns. Every other county is still being dated, and the site says so rather than filling the gap with an estimate. The same counts are published as open data in the Florida Roof Age Index, so a prospect can check the number a rep quotes.

What your team sees on the map

Every home carries its roof age, the permit behind it when one exists, and the roof type where the county records it. Filter a territory to roofs 15 or more years old with no recent permit, layer owner occupancy and mortgage context on top, and the map shows the homes worth a knock instead of a wall of parcels.

• Roof age from the most recent finalized reroof permit, with the permit number and source
• Build year shown as an upper bound where no reroof permit is on file, labeled as an estimate
• Roof type and replacement signals where the county or city records them
• Age band filters that match the counts published in the Roof Age Index

Why it changes how a crew works

A verified reroof from two years ago tells a rep to skip the door. A 22 year old asphalt roof with no permit on file tells them to knock. Without the record, both houses look identical from the street, and the crew spends gas and hours finding out. With it, the list is ranked before anyone leaves the office, and the conversation at the door starts from a fact the homeowner can verify.