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Product Overview

With superior strength and spanning capability, Fabral Powerseam II is a high-performance, mechanically seamed standing seam roofing system. With 180 degree machine seaming, field rollforming and the ability to curve to a minimum 10’ radius, Powerseam II delivers performance and value to education, athletic and industrial projects. Shadow lines and stiffening ribs available.

Product Description

Air Infiltration ASTM E283 0.01 cfm/ft2 @ 15 psf
ASTM E1680  <0.01 cfm/ft2 @ 1.57 psf
Water Penetration ASTM E331 No water leakage @ 6.24 psf
ASTM E1646 No water leakage @ 2.86 psf
ASTM E2140 No leakage of standing water
Wind Uplift ASTM E1592 Test results vary depending on gauge and panel thickness
UL580 Class 90



See Available Colors

Finish Offerings

Fabral PowerSeam Spec Doc

PowerSeam Wind Uplift Loads (PSF) Double Lock

Substrate Width Spans 2′-0″ 2′-6″ 3′-0″ 3′-6″ 4′-0″ 4′-6″ 5′-0″
24 ga. Steel 16” 3+ 102 92 82 73 63 53 44
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