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Glendale AZ Roof Collapse

Glendale AZ Roof Collapse

RE: Glendale AZ Roof Collapse

Looks like a failure somewhere in the center 1/3 of the span. Notice that it has a tile roof - very heavy.

Makes you wonder whether the truss designer/company knew of that load?

RE: Glendale AZ Roof Collapse

Due to the temperatures in the region recently, I would wonder about connection/material degradation over time due to thermal expansion/contraction loading.

Mike McCann
MMC Engineering

RE: Glendale AZ Roof Collapse

I second JAE. The truss design drawings might tell the story if they did not anticipate tile loading (or mortared tiles vs nailed tiles).

Trusses in a span that large would have been shipped in 2 or more pieces. I would be curious to see what the connections look like.

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