Terracotagres Master (Double Roll) Ceramic Tile

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I recently came across a tile I had never seen before. As soon as we pulled up and the roof tiles came to view, “well that’s a different tile” rolled out. Turns out it was a ceramic tile made in South America.
Here’s the NOA https://terracotagresusa.com/wp-content/uploads/2022/04/20043004.pdf

Here’s their American outlet website: https://terracotagresusa.com/master-profile/

It was a stylish tile with a slick glazed finish installed straight bond (by design, not typical for a raised profile tile). They claim the ceramic tiles provide an element of thermal insulation. Which seemed very plausible given the attic temperature conditions.

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Thankfully the builder left some extra tiles on site or I may have not figured out what these were.

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The unique design allows for an atypical installation. When correctly interlocked the tiles are straight bond and have less than a 3" headlap. Unfortunately this installation lacked the proper fastening required to meet the uplift resistance criteria for this area.

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interesting

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I imagine walking on a glazed roof tile would be like walking on a wet mirror…

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Thank you very much. Loads to learn from your post. I will go over the NOA again. What was the proper fastener and length, David?

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The tiles were fastened with #8 screws, they only installed one screw per tile (with no adhesive). One #8 screw does not meet the uplift resistance criteria for this area.

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Appears they are from Portugal. I am going to try to find the installation instruction.
What does the manufacturer say?
Is this the product? American Ceramic Tile Glazed Ceramic 25x41.5cm Graphite Temax

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The (USA) link to the company is above. The tiles are made at Cumeeria Sango Santa Catarina Brazil.