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Close view of a wood-grain metal siding finish
Exterior steel finishes

Coatings, Colours & Steel Options

Choose solid or wood-grain PVDF finishes with 22, 24, and 26 gauge steel options across compatible siding, roofing, flashing, and trim profiles.

PVDF
Exterior Finish
4
Finish Options
22/24/26
Gauge Options

PVDF Coating System

Exterior finish over primer, AZ150 aluminum-zinc coating, and an ASTM A792 steel substrate

22, 24 & 26 Gauge Steel

Catalogue gauge options across compatible siding, roofing, flashing, and trim profiles

Solid & Wood-Grain Finishes

Ice White, Cream White, grey, and wood-grain options for different architectural expressions

Finish palette

Solid neutrals and a wood-grain option

Four architectural finish directions for walls, roofs, flashings, and trim across compatible Terrashield profiles.

Solid finish

Ice White

Digital samples are representative only. Screen settings and lighting can affect appearance; request a physical sample before making a final colour decision.

Steel gauge options

Choose the gauge your profile and project require.

Terrashield offers 22, 24, and 26 gauge steel across compatible siding, roofing, flashing, and trim profiles. Start with the profile below, then send us the project details for a quotation.

Ask about a gauge
22ga

Heavy-gauge option

TerraCrest 100 + 200

Available for both TerraCrest trapezoidal profiles when the project calls for a heavier panel option.

24ga

Broad profile coverage

Siding, roofing, and trim

Available for TerraGroove, TerraLap, both TerraCrest profiles, and standard flashings and trim.

26ga

Broad profile coverage

Siding, roofing, and trim

Available for TerraGroove, TerraLap, both TerraCrest profiles, and standard flashings and trim.

Catalogue guide

Profile gauge map

Select a profile and gauge together. Final material, finish, quantities, lengths, and timing are set in the project quotation.

TerraGroove 300

Linear siding

24 / 26

TerraLap 200

Low-rib siding

24 / 26

TerraCrest 100

Roofing and siding

22 / 24 / 26

TerraCrest 200

Roofing and siding

22 / 24 / 26

Standard flashings and trim

Project-specific details

24 / 26

Need another specification?

Send the profile, gauge, finish, quantity, lengths, and required date. We'll review the fit and quote it.

Request a gauge quote
Material Anatomy

Protection, Layer by Layer

The panel material combines a colour finish, primer, metallic coating, and steel substrate into one prepainted architectural material.

Coating Anatomy

Each layer has a specific role, from the exposed PVDF surface to the formed steel core beneath it.

70% PVDF finish

Prepainted exterior colour layer

Primer system

Promotes adhesion between finish and metallic coating

AZ150 Galvalume

Aluminum-zinc corrosion-protection layer

ASTM A792 steel

Structural base metal substrate

Close view of roller stations on a Terrashield roll-forming line

Prepainted before forming

The finish system is already applied before the confirmed material reaches the roll-forming line.

UV and weather resistance

PVDF is widely used for exterior architectural finishes where colour stability and weather resistance matter.

Corrosion protection

The AZ150 aluminum-zinc coating creates a protective barrier around the steel substrate.

Documented construction

Material information identifies the steel substrate, metallic coating, primer, and finish system used for the quoted order.

Layered performance

Finish, primer, metallic coating, and steel each contribute a distinct function to the complete panel system.