TopHat Subframe for Metal-over-Metal Reroofing

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Nov. 10, 2026
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Courtesy of TopHat Framing Systems (Top-Hat Framing System, LLC)
TopHat Subframe bundles

The TopHat Subframe is a patented hat-section retrofit sub-purlin for metal-over-metal reroofing. Fastened to the existing purlins over the old roof, it lets a new metal roof go on without tear-off and strengthens the existing purlins. Punched to fit R-Panel, 7.2 Rib, standing seam and other panels. 3-1/2" height, 50 ksi G90 galvanized steel, 16 or 14 ga. Project engineering available. Made in the USA. Details: https://www.tophatframing.com/tophat-subframe-for-metal-reroofing.html

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