Steel Roof Decking Thickness

Manufacturers express the thickness of metal panels as their gauge with 22 gauge being the thickest and 29 gauge the thinnest of traditionally sold metal roof and wall panels.

Steel roof decking thickness.

26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4. 0 027 or 0 032 for seamless gutters and any other thickness for custom gutters. Type b roof deck 22. Roofs with very heavy loads may require 3 4 inch thickness.

0 7 mm 0 8mm and 1 5 mm. Regardless of thickness the plywood should be a type suitable for exterior use graded exterior or exposure 1. Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength. Never attach roof sheathing with staples.

Each gauge represents a nominal decimal range. Minimum 024 aluminum standing seam. 2 2 lb ft galvanized 2 1 lb ft painted type b roof deck 18. Manufacturers in the united states use gauge to express the thickness of metal roof panels.

8d ring shank nails should be used instead. 1 8 lb ft galvanized 1 7 lb ft painted type b roof deck 20. Minimum 024 steel standing seam. Kynar galvalume steel for metal roofing and gutters.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Thickness of a steel roof deck can be determined at a roof hatch where the edge of the deck may be available for measurement with a micrometer. Minimum 0145 aluminum shingles. Kynar aluminum for metal roofing.

It s important for you as a homeowner to know about the gauge thickness of a metal roof so you can select the best one for yourself. 014 018 exposed fastener corrugated aluminum roofing. Minimum 032 steel shingles. Exposed fastener corrugated steel roofing.

22 gauge is the thickest while 29 gauge is the thinnest.