Repair Systems — 03 — Facade & External Envelope
Cavity flashing — Alcore composite
Technical product reference for Alcore (aluminium-core composite) cavity flashing systems for masonry facade remediation on Australian Class 2 strata buildings. Alcore composite flashings combine an aluminium foil core with a polyester or bitumen-modified outer layer — offering the formability of lead with improved chemical resistance, lighter weight and suitability for a wider range of exposure environments including coastal and marine-influenced locations.
Alcore composite cavity flashing types
Select the Alcore flashing type below to compare individual suppliers, technical data, and procurement sources.
Alcore Bitumen-Aluminium Composite
Standard aluminium foil + bitumen compound laminate — self-healing at minor mechanical damage, lighter than lead, simpler to install than aluminium strip. Standard cavity applications.
Alcore Polyester Reinforced Composite
Polyester scrim reinforcement bonded between aluminium and bitumen layers — enhanced puncture resistance and dimensional stability for wide-cavity and parapet applications.
Alcore Self-Adhesive with Weep Formers
Self-adhesive bitumen-aluminium composite with integral weep former geometry — bonded installation, single step installs flashing and weep provision together.
Disclaimer
This page provides general technical information only. Alcore composite cavity flashing type, coastal suitability, lap and weep hole spacing must be confirmed against the project's exposure classification, masonry type and AS 3700 requirements. Confirm product coastal rating with the manufacturer before specification.