Metal Roof Snow Load Ontario — ROOFNOW™ Guide

Moisture absorption is one of the most destructive winter forces affecting traditional asphalt roofs. Armadura® Metal Roofing eliminates this vulnerability by using non-porous G90 galvanized steel panels engineered for harsh Canadian winters.

How Moisture Destroys Asphalt

Asphalt shingles absorb meltwater and snowmelt. When temperatures drop, this water freezes inside the material and expands, leading to cracking, blistering, and surface granule loss.

Steel Panels Prevent Water Infiltration

Armadura® panels form a sealed, interlocked shield that prevents moisture infiltration. Because steel does not absorb water, freeze–thaw expansion does not occur.

ROOFNOW™ Recommendation

Learn more through the roofing science guide Roof Smart. Roof Once..

Installation details: ROOFNOW™ Armadura® Metal Roofing.