This tool acts as a digital foreman for installing R-Panel (PBR) roofing. It solves the two biggest mistakes DIYers make: Incorrect Layering (putting the rake trim on before the underlayment) and Wrong Screw Placement (putting screws in the ribs instead of the flats, or missing the purlins).
It includes a “Screw Pattern Trainer”—an interactive SVG where users must click the correct spot on the panel profile to learn where fasteners go to prevent leaks.
Metal Roofing Installer
R-Panel Calculator, Layering Guide & Screw Patterns.
Roof Dimensions
ft
ft
Include overhangs!
Bill of Materials
Metal Panels
0 sheets
Fasteners (Screws)
~0 count
Eave Trim (Drip Edge)
0 ft
Gable/Rake Trim
0 ft
Ridge Cap
0 ft
Closure Strips
0 ft (Inside & Outside)
*Calculations include 10% waste factor. Verify with supplier.