Measurement rules for building envelope works under ANZSMM 2018 — Roofing (§16 membranes, sheet roofing, slate/shingle/tile, flashings, gutters, downpipes, sumps, fascias), Facade Systems (§17 proprietary, composite, curtain walling), Windows (§18 metal/timber, louvres), Glazing (§19), and Doors (§24 metal/strongroom/fire/timber, roller shutters/grilles, frames). Use when measuring or pricing roof coverings, facade/curtain wall systems, windows, glazing, external doors, gutters, downpipes, flashings, or insulation.