Plumb Roof PRO: Roofing Calc

MEASURE THE ROOF, SIZE THE JOB, KEEP THE RECORD.

Plumb Roof Pro is a focused roofing calculator — read the pitch, take off the material, and keep every number with the job. No paper pad, no second app, no account.

MEASURE THE PITCH
• Pitch gauge — lay the phone on the deck or hold it to a rafter for the angle
in degrees and inches-per-foot, with a haptic lock when the reading settles.
• Pitch from a photo — shoot the gable end square-on from the ground, drag a
line onto the slope, and read the pitch without climbing.

TAKE OFF THE ROOF
• Tape measure — log every run (eave, rake, ridge, hip, valley) on the fast
fraction keypad; it totals the linear feet and can seed the material list.
• Material calculator — plan area, pitch, and waste in; squares, shingle
bundles, underlayment, ice-and-water, starter, ridge and hip cap, drip edge,
and nails out. Coverage and waste presets are editable, and any count can be
overridden.

CHECK THE DETAILS
• Ventilation — attic area with a 1:150 or 1:300 ratio gives required net free
area, balanced intake and exhaust, ridge-vent feet, and soffit count.
• Rafter — run, pitch, and overhang give common and hip/valley rafter lengths,
with the pitch, angle, and slope factor shown together.
• Plumb bob — a true vertical for a chimney, parapet, or wall.

KEEP THE JOB
• Every reading saves to an on-device job ledger — search it, pin it, reopen it.
• Export a clean, branded PDF or PNG, or a .plumb backup, when you choose to.
• English and Spanish, in the app and in the exports.

Free to try for 14 days, then a one-time unlock — no subscription, no ads, no account. Your jobs stay on the device and leave only when you share or export them.

A note on accuracy: phone-sensor and photo measurements are a fast field reference, not an engineering or code determination. Confirm structural, ventilation, nailing, and safety-critical numbers with calibrated tools and current local code.