Does DrainPass Roof size roof drains?

No. It cross-checks stamped plan sizes and routes mismatches to an RFI.

Does DrainPass Roof work offline?

Yes. Records and math stay on the device. Exports use Android share.

What field checks does DrainPass Roof cover?

It covers slope to drain, cricket build-up, 48 hour ponding tests, plan-vs-field drainage values, and a per-roof drainage sheet.

Roof ponding test and drain check for commercial roofs

DrainPass Roof checks positive slope to every drain, sizes crickets, runs the 48 hour ponding test, matches field values to the stamped plan, and exports the drainage sheet.

Built for low-slope commercial roof crews on datacenter jobs. The app is a field aid, not a stamped design tool.

Screenshots

Roof dashboard with PASS and REVISE status by section.

Section detail with plan values, slope, cricket, flood test, and cross-check cards.

Drainage sheet export for PDF, CSV, and field cards.

Rainfall library with plan-confirmed values and a 1-hour helper.

Reference library with code edition, overflow method, and roof drainage rules.

Pricing

Free: slope and cricket checks, one section, one flood test, and one export.

Pro: unlimited sections, the 48 to 72 hour ponding flood test, overflow and plan reconcile, and PDF, CSV, and field-card export. $4.99/mo, $39.99/yr, or $99 lifetime through Google Play billing. No subscription required — the lifetime unlock is a one-time purchase.

FAQ

Does DrainPass Roof size roof drains?: No. It cross-checks stamped plan sizes and routes mismatches to an RFI.
Does it work offline?: Yes. Records and math stay on the device. Exports use Android share.
What is the main job?: Field verify slope, crickets, ponding tests, and plan-vs-as-built drainage values.