Steel Roof Decking Thickness

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.

Steel roof decking thickness.

2 2 lb ft galvanized 2 1 lb ft painted type b roof deck 18. 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. Roofs with very heavy loads may require 3 4 inch thickness. Exposed fastener corrugated steel roofing.

8d ring shank nails should be used instead. Minimum 0145 aluminum shingles. Kynar galvalume steel for metal roofing and gutters. Minimum 0185 steel tile.

Minimum 024 steel standing seam. Type b roof deck 22. Sheathing should be a minimum of 19 32 inch thick. Metal roofing thickness recommendations that include paint.

0 027 or 0 032 for seamless gutters and any other thickness for custom gutters. Kynar aluminum for metal roofing. Minimum 032 steel shingles. 0 7 mm 0 8mm and 1 5 mm.

Minimum 024 aluminum standing seam. 26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4. Each gauge represents a nominal decimal range. Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength.

1 8 lb ft galvanized 1 7 lb ft painted type b roof deck 20. 22 gauge is the thickest while 29 gauge is the thinnest. 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. Manufacturers in the united states use gauge to express the thickness of metal roof panels.

The typical thickness range for sheathing is 3 8 to 3 4 inch.