Most roofers don't lose money on big, dramatic estimating errors — they bleed it through the same small Xactimate mistakes repeated on every claim. From wrong price lists and lowball waste factors to forgotten steep charges and the infamous felt-suffix mix-up, this guide breaks down the nine most expensive Xactimate mistakes roofers make, what each one costs, and the system that prevents all of them at once.

Verisk has built an AI roofing-estimate generator directly into Xactimate. XactGen Roofing promises to take roof measurement data and produce a scope that's "80% complete in minutes" — and it's aimed at adjusters and claims teams first. That changes what lands on a roofer's desk. This guide explains what XactGen is, how it works, who it's built for, the three things roofers should expect when AI-generated carrier scopes become the norm, and why your own estimating system matters more now, not less.

Xactimate offers three certification levels, and every roofer eventually wonders whether the credential is worth the time and money. This guide breaks down what each level actually tests, how the exams work, what they cost, and — most importantly — an honest answer on when certification pays off for a roofing business and when your hours are better spent building raw estimating proficiency instead.