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Fastener Schedule & Gasket Integrity Estimator

Calculate mandatory fastener patterns and component counts for exposed-fastener metal roofing systems (AG-Panels). No sign up required. Free to use.

Frequently Asked Questions

Everything you need to know about this metal roof screw calculator tool.

What is the profit potential of 'Re-Screwing' aged metal roofs?
Re-screwing is a high-margin maintenance service ($2.50–$4.00 per LF). As original neoprene washers degrade after 12–15 years, offering a full fastener replacement can double the roof's life and generate lucrative 'fill-in' jobs for your crew without the liability of a full tear-off.
Why should I only use EPDM-washer screws for metal roofing projects?
Cheap neoprene washers dry out and crack in under 10 years, creating thousands of potential leak points. Specifying premium EPDM washers allows you to offer a 20-year workmanship warranty on the seal, setting your company apart from budget-rate competitors.