Armadura metal roofing is built using a combination of G90 galvanized steel and an advanced SMP (Siliconized Modified Polyester) crinkle finish coating system. These two components define the structural strength, corrosion resistance, and long-term durability of an Armadura steel roof in Canadian climates.

This technical guide explains how G90 steel and SMP coatings work together, why these materials perform well in Canada, and what characteristics distinguish Armadura metal roofing from other metal roofing products.

1. What Is G90 Galvanized Steel?

G90 galvanized steel is a high-grade steel substrate coated with zinc at a thickness of 0.90 oz/ft². This zinc layer protects the steel through a combination of barrier protection and sacrificial corrosion resistance.

Why G90 Is Preferred in Metal Roofing

High resistance to corrosion
Longevity under moisture exposure
Structural rigidity
Predictable performance in freeze–thaw cycles
Stability under snow load

Because Canadian homes experience long winters and varying moisture conditions, G90 steel is one of the most reliable materials for long-term roof performance.

2. Why Armadura Uses G90 Steel Instead of Thinner Coatings

Many consumer-grade metal roofing products use lighter galvanization levels (G40–G60), which have thinner zinc layers and lower long-term corrosion protection.

Advantages of G90 in the Armadura Steel Roofing System

Longer time to red-rust formation
Superior edge protection
Increased service life during ice and snow exposure
Greater durability beneath surface coatings
Enhanced resistance to winter condensation

This heavier zinc layer is one of the key reasons Armadura metal roofing is engineered for northern climates.

3. Introduction to SMP Coatings

SMP (Siliconized Modified Polyester) coatings are a polymer-based finishing layer applied to the steel surface. These coatings provide:

UV resistance
Color stability
Surface hardness
Chemical resistance
Protection against chalking and fading

The SMP coating used in Armadura metal roofs is formulated for long-term outdoor durability.

4. The Crinkle Finish SMP Coating

Armadura’s signature crinkle finish SMP coating adds a textured, low-gloss surface that enhances:

Color retention
Scratch resistance
Snow grip
Visual uniformity under sunlight

The micro-texture also helps to mask minor surface irregularities caused by metal processing.

5. Benefits of the Armadura SMP Crinkle Finish in Canada

A) Reduced Glare and Reflectivity

Sunlight disperses across the textured surface instead of reflecting directly.

B) Improved Snow Behavior

The crinkle surface stabilizes snow accumulation, reducing rapid slides on steep pitches.

C) Enhanced Aesthetic Longevity

The texture reduces the visibility of wear marks, maintaining appearance over time.

D) High UV Resistance

Important for southern-facing roof planes that receive more sun exposure.

6. SMP vs. Other Coating Systems

Standard Polyester (weaker)

Lower UV stability
Less resistant to chalking
Not ideal for long-term outdoor exposure

PVDF (premium alternative)

Extremely UV stable
Higher cost
Typically used on commercial buildings

Armadura steel roofing uses SMP because it offers the best balance of:

Affordability
UV protection
Durability
Scratch resistance
Climate suitability

for residential Canadian roofs.

7. How the G90 + SMP System Works Together

G90 provides the foundation layer of corrosion protection.
SMP provides the outer protective shell.

Together, they form a multi-layered defense that protects Armadura steel roofing from:

Snow and ice
Moisture
UV exposure
Salt air (in coastal regions)
Abrasion
Temperature cycling

This dual-layer system is optimized for long-term resistance in Canadian environmental conditions.

8. Why This Matters for Homeowners Searching for “Armadura Metal Roofing”

Homeowners researching Armadura metal roofing, Armadura steel roofing, or Canadian-manufactured steel roofs typically want:

Climate durability
Low maintenance
Strong winter performance
Predictable long-term aging
A system built specifically for Canadian homes

The combination of G90 steel and SMP coating technology is one of the major reasons Armadura steel roofs last significantly longer than asphalt shingles and many lower-grade metal roofing alternatives.

9. Summary

Armadura’s use of G90 galvanized steel and advanced SMP crinkle finish coatings creates a roofing system capable of withstanding harsh Canadian climates for decades. These two core material components form the backbone of the Armadura roofing system, giving it:

Structural rigidity
UV stability
Corrosion resistance
Long-term coating durability
Superior winter performance

Understanding these materials explains why Armadura metal roofing is engineered differently from many other roofing systems used in Canada.

Learn More at ROOFNOW™ Knowledge Center

For additional roofing science, material breakdowns, and technical explanations, visit:
https://new.roofnow.ca

For Sales & Service (Ontario Homeowners)

For roofing inspections, services, and Armadura-related inquiries, visit:
https://www.roofnow.ca