DECRA Metal Roofing: Tested Above and Beyond to Ensure Quality

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

CAN/CGSB: Canadian General Standards Board (Version 93.3: Prefinished Galvanized and Aluminum-Zinc Alloy Steel Sheet)
International Residential Code (IRC) and International Building Code (IBC)

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