Metal roofing -how to choose

Various roof failures, including asphalt shingle blow-off, and premature curling and cracking, has led homeowners to look for more reliable and durable solutions.  As such, people often start asking about metal roofing.

Metal roofing continues to be more and more popular, despite its initial cost, because people are getting tired of having roofs that fail much before their warranties expire.  The metal product offerings come in a dizzying variety of materials, appearances, textures, colours, and performance.  How does one wade through all the sales claims and marketing hype to decide which options are truly the best for you?  It helps to remember that there is no product invented by humans that is truly perfect in every circumstance.  So the exercise is to find the product whose weaknesses are minimized in your particular circumstances, and whose strong points are fully delivered.  It should not be a surprise that proper preparation and installation play a very big role in the final quality of the result.  So let’s examine a selection of products and discuss how their weak (and strong) points should be considered in your selection process.

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Converting a Tar-and-Gravel roof to metal or membrane

If you have a tar-and-gravel low-slope roof (typical of constructions in many areas in Montreal), you may consider changing the roofing material to something else.  Two common alternatives to tar-and-gravel are two-ply membrane assembly and standing-seam hidden-fastener metal panels.

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Foundations (of a metal roof system)

What are you talking about?  Roofs don’t have foundations.  Things stuck in the ground do.  Building do.  But roofs?  They’re up there, talking to the sky.  What need do they have for foundations?

And yet, they do.

Because roofs are structures, and structures need a base, a foundation.

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