Installation-documentation scope

VentLib geometry and connector datums support planning; they are not installation approval. Current manufacturer instructions, applicable regulations, project specifications and site conditions remain authoritative. The public source register links to official sources and states known modelling assumptions without republishing manufacturer documents.

Project evidence

Private project images and installation evidence are not published by GitHub Pages. K39B working documentation remains in its access-controlled project record. GitHub Pages is static hosting and is not used as a password-protected document store.