Roof Drainage Layout

Veeme Media marketing

About this app

Roof Drainage Layout is a computational roof drainage planning tool for architects, engineers, and roofers — not a gutter-size calculator.

Draw your roof's actual geometry (multiple facets, real elevations) and place your drains or gutters. The app traces how water actually flows across each sloped facet — including across facet boundaries, like water crossing into a shared valley — to show you exactly which area resolves to which drain, and honestly flags the area that doesn't resolve at all rather than guessing. That's not a bug: a point drain genuinely can't collect a whole sloped eave on its own, which is exactly why real buildings use continuous gutters — and this app shows you that, instead of hiding it behind a fake green checkmark.

What's included:
• Multi-facet roof geometry with per-vertex elevation entry
• Real catchment tracing (not a flat-percentage estimate) across drains and gutters
• A connected drainage network: gutters, downpipes, pipe segments, and discharge points
• Rainfall-driven hydraulic demand (rational method)
• An independent emergency/secondary drainage system with "what if this drain gets blocked" analysis
• Material takeoff with CSV export
• Professional PDF reports with your business branding
• Whole-project JSON backup and restore

Free tier includes the core catchment mapping tool. Roof Drainage Pro (one-time purchase) unlocks the full connected drainage network, emergency overflow planning, and PDF reports.

What’s new

Initial release: roof catchment mapping, drainage network planning, emergency overflow analysis, material takeoff with CSV export, PDF reports, and JSON backup/restore.