Metal Roof Innovations Central

Galvanized vs Galvalume®

Posted by Kimberly Reichert on Jul 31, 2019 3:42:51 PM

What is Galvanized Steel?


Carbon steel is inherently susceptible to corrosion, which means it must be protected by some other metallic coating that is less corrosive. Carbon steel sheet is called “galvanized” when coated with a thin layer of pure zinc.

This coating provides two types of corrosion protection for the steel: “barrier protection” (sealing the surface from air and water) and “sacrificial protection” or “galvanic” protection—especially at scratches and cut edges.

This is an electrolytic process whereby the base metal is protected, but at the expense of the coating. The zinc “sacrifices” itself to protect the underlying layer of steel. 

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Tags: metal roofs, roof panels, corrosion, aluminum, durability, metal panel, rust, gavalume, galvanized

What are the Parts of a Metal Roof?

Posted by Kimberly Reichert on Apr 4, 2019 11:18:59 AM

WORD OF THE WEEK: Dormer

PRONUNCIATION: \ ˈdȯr-mər

PART OF SPEECH: NOUN

SENTENCE: // A dormer is a structural projection from the main roof. It is usually gabled and typically has a window. The word dormer refers to the whole projection, not just the window. 

When referring specifically to the window itself, it would be called a “dormer window”. It comes from the Latin word dormitorium, which means “sleeping room”.

But what about everything else that makes up a metal roof? From flashing, ridges, to valleys and eaves. Where are all these on a roof and what is their purpose? Read on as we deconstruct the rest of the metal roof.

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Tags: metal roofs, metal roofing, standing seam metal roof, exposed fastener, roof panels, corrugated, metal panel, trapezoidal, sandwich panel

   

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