Mark Karper

Mark Karper authors the RoofHQ blog, where we write about the software and estimating problems independent roofing contractors actually hit: getting measurements off a satellite without a drone, turning a takeoff into a price that holds up, and deciding what roofing software is worth paying for at your crew size.

The bar for anything published here is that it should save a contractor money or time, and that every claim should survive the question “how do you know?” Where we do not have first-hand data on a vendor's pricing or a tool's accuracy, we say so instead of guessing.