ASTM A653/A653M
Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
What it measures
Specifies the sheet steel used for cold-formed framing, including the grade, the yield strength and the galvanized coating weight.
Why it matters for a panel envelope
The coating designation is what determines how long steel framing resists corrosion inside a wall.
Guardian Shield™
The Shield™ structure is cold-formed galvanized steel; connections use 20-gauge minimum galvanized angle or track with TEK screws.
Source · 3-Part Specification, 1.3 F.4; Technical Product Description · Guardian documents
Written by Data Subsystems, for Guardian Structural Technologies. Last updated .
Drafted from Guardian Structural product literature and published building-science sources. Awaiting Guardian technical review. Confirm any figure against the current product documents or ask us before you rely on it in a design.
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