Passive-Solar Roof Eave & Brise-Soleil Solstice Cutoff Calculator

Deterministic Summer/winter solstice meridian solar altitude trigonometry: D = H_tot / tan(90 - phi + 23.44), H_gap = D * tan(90 - phi - 23.44) engine (.svg, .dxf, .pdf, .json) built for Schüco, Passive House, Graphisoft Archicad, Velux — zero-upload ephemeral Wasm RAM execution.

+ Drop File

Cloudflare Ephemeral Wasm RAM · 0% Retention

DETERMINISTIC VERDICT

Double-click 2.4× zoom · Drag to pan / 3D orbit

Free Deterministic X-Ray Preview

Running ephemeral Wasm verification…

Verified Engineering Output

Instant unlock via Apple Pay / Card (Paddle Merchant of Record) · 1-click automated refund, zero support tickets.

HeyCheck Cloud Compilers · Deterministic Zero-Upload Wasm Execution Terms Privacy Refund Policy