EnviroTuff · Flagship product

ACC Weathering Membrane

Waterproof. Reflective. Corrosion-proof. Insulating. One self-adhesive membrane that does the work of four — engineered for metal, concrete and solar-ready roofs.

87%Solar reflectance
25°CCooler roof surface
25+ yrsService life
10-yrWarranty

Four jobs, one peel-and-stick layer

ACC (Anti-Corrosion Coating) is a multi-layer, self-adhesive weathering membrane that bonds a reflective pure-aluminium and reinforced facing to a high-performance butyl rubber adhesive base. Peel the release film, press it down — no torching, no liquids, no specialist plant.

In a single application it waterproofs the roof, reflects the sun's heat, resists corrosion in harsh environments, and adds a layer of thermal insulation. It's built for retrofit and restoration as much as new build — ideal for ageing metal roofs, concrete decks, gutters, pipework and solar-ready rooftops.

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EnviroTuff ACC — a complete roof protection system

What ACC delivers

Figures reflect the latest product generation, validated as performance benchmarks have been met.

87%
Solar reflectance — turning away the radiant heat that bakes a roof
100
Solar Reflectance Index (SRI) — top-tier cool-roof performance
−25°C
Lower roof surface temperature recorded in summer field testing
25–40%
Reduction in air-conditioning energy use in tested buildings
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Fully Waterproof

A continuous butyl-backed seal with proven impermeability — sheds water across roofs, gutters, joints and penetrations.

Corrosion Resistant

Withstands acidic and alkaline exposure (pH 2–13) and salt spray — with a service life of 15+ years even in highly corrosive marine environments.

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Weathering Stability

Holds reflectance and integrity through 10,000 hours of accelerated weathering — no powdering, cracking or delamination.

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Boosts Bifacial Solar

As a ground or roof reflector beneath bifacial PV, ACC lifted measured generation by 9.1% in field testing — turning a roof into a solar asset.

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Peel-and-Stick Install

Self-adhesive application — no heat, no flame, no liquid membranes. Faster, safer installs with less specialist labour.

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Built to Last

A service life of more than 25 years, backed by a 10-year product warranty.

Technical summary

Representative properties for the ACC Weathering Membrane (product code WF 501C-BU). Full datasheets available on request.

ProductACC Weathering Membrane (V-fix ACC Roof) — WF 501C-BU
ConstructionAnti-corrosion coating / aluminium foil / reinforced PET facing / butyl self-adhesive base
ColourSilver (reflective)
Solar reflectanceUp to 87% (ASTM C1549)
Solar Reflectance Index (SRI)Up to 100
Service life25+ years (15+ years in highly corrosive marine environments)
Warranty10 years
Weathering resistanceStable to 10,000 hours accelerated weathering
Corrosion resistancepH 2–13; salt-spray resistant
Temperature rangeButyl base performs approx. −30°C to +80°C
InstallationSelf-adhesive, peel-and-stick (release film removed) — no torch or liquids
Australian and US certification pathways (including CRRC cool-roof listing) are actively underway. Talk to TerraShield for the current compliance status in your market.

Where ACC works

Metal roofs Concrete roofs & decks Photovoltaic / solar-ready roofs Gutters & drainage Pipelines Granaries & storage tanks Telecom base stations Warehouses & factories Agricultural buildings Joints, ridges & penetrations Roof repair & restoration

The ACC system on one page

The complete roof-protection system — layers, performance and applications.

EnviroTuff ACC Weathering Membrane system overview flyer

Documentation

Brochures, datasheets and supporting reports for the ACC Weathering Membrane.

Specify ACC on your next roof

Request a sample, full technical datasheets, or a quote for your project across Australia and the USA.

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