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DECRA Metal Roofing: Tested Above and Beyond to Ensure Quality

DECRA Quality Metal Roofing
September 1, 2022 at 6:00 p.m.

By Mark Gallant, DECRA.  

DECRA Metal Roofing products are submitted for independent laboratory testing to verify their advanced performance.  

DECRA products are designed to withstand the elements, but even more so, they are designed to go above and beyond when it comes to durability and longevity. This is why DECRA is the only stone-coated steel roofing manufacturer to conduct exhaustive 13-point independent laboratory testing to ensure our products provide a lifetime of protection.  

Meeting the higher testing standards of Canada 

Many of DECRA’s competitors, especially overseas manufacturers, don’t offer their products in Canada since the harsh weather conditions of the region require rigorous testing that is beyond the scope of their products.  

DECRA, on the other hand, has had a long-established reputation for quality in Canada and their roofs have been enduring harsh Canadian winters for decades -- still retaining their original beauty and strength.  

DECRA takes pride in being the only stone-coated steel roofing manufacturer to meet or exceed the rigorous tests below and have the quality of our products verified by independent laboratory testing: 

  • APA PRP-108: American Plywood Association – Engineered Wood Systems 

  • ASTM: American Society for Testing and Materials International 

Let’s look at the 13 physical properties that all DECRA products are independently tested for:

Material Thickness 

Micrometer or Vernier Caliper measurement 

Impact resistance and shear strength 

Aluminum-Zinc Alloy Thickness 

ASTM A653 

Strength, bending, and anti-corrosion. 

Coating Quality 

CAN/CGSB-93.3 Section 6.2 

55% Aluminum-zinc alloy quality for exterior exposure and weather durability. 

Coating Thickness 

CAN/CGSB-93.3 Section 6.2 | Thickness measured per ASTM D1005 

Adequate protective (film) thickness for weather durability and thermal performance. 

Film Adhesion 

CAN/CGSB-93.3 Section 6.5.1 

Ageless beauty and color without granular loss. 

Hardness 

CAN/CGSB-93.3 Section 6.7.1 | Test per ASTM D3363 

Class 4 Hail Impact resistance and fully walkable roof surface. 

Flexibility 

CAN/CGSB-93.3 Section 6.8 

Withstands bends required for cupolas, towers, and complex roof geometry. 

Humidity Resistance at 100% relative humidity 

ASTM D2247 

Test for water damage resistance to detect deficiencies in coatings. 

Salt Spray Resistance (Salt fog spray) 

ASTM B117 

Resist metal corrosion in the harshest environment. 

Durability (Sunlight and ultraviolet rays) 

CAN/CGSB-93.3 | Test per ASTM G155 

Prevent color pigment degradation, rusting, and breakdown from UV rays. 

(Loss of Adhesion Test) 

ASTM D4977 

Prevent the loss of stone-coating and abrasive wear common with asphalt shingles. 

Traffic Load 

ASTM E661 

Resistance to deflection for walkable roofs and enhanced impact resistance. 

Uniform Load (Performance rating for flooring and structural panels) 

APA Test S-2 in American Plywood Association PRP-108 

Load testing for walkable roof and weight-bearing under snow loads 

 

Learn more about DECRA  in their RoofersCoffeeShop® Directory or visit DECRA.com. 

Original article source: DECRA



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