Steel Roof Decking Thickness

Minimum 0145 aluminum shingles.

Steel roof decking thickness.

Kynar galvalume steel for metal roofing and gutters. Metal roofing thickness recommendations that include paint. Exposed fastener corrugated steel roofing. 2 2 lb ft galvanized 2 1 lb ft painted type b roof deck 18.

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. 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. 1 8 lb ft galvanized 1 7 lb ft painted type b roof deck 20. 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.

Kynar aluminum for metal roofing. Each gauge represents a nominal decimal range. Type b roof deck 22. Sheathing should be a minimum of 19 32 inch thick.

Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength. 014 018 exposed fastener corrugated aluminum roofing. 26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4. Minimum 024 steel standing seam.

Minimum 032 steel shingles. Manufacturers in the united states use gauge to express the thickness of metal roof panels. 22 gauge is the thickest while 29 gauge is the thinnest. Roofs with very heavy loads may require 3 4 inch thickness.

Regardless of thickness the plywood should be a type suitable for exterior use graded exterior or exposure 1. The typical thickness range for sheathing is 3 8 to 3 4 inch. Minimum 0185 steel tile. Minimum 024 aluminum standing seam.

0 7 mm 0 8mm and 1 5 mm.