Steel Roof Deck Thickness

Most common thickness for rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

Steel roof deck thickness.

In that case a pullout test device can confirm adequacy. From the typical 1 to 3 roof and composite floor deck to concrete form deck to long spanning deep deck profiles asc steel deck s extensive product offer meets the needs of the most complex conditions and demands for structural performance and design. Type b roof deck 22. 1 8 lb ft galvanized 1 7 lb ft painted type b roof deck 20.

For example a 26 gauge steel panel can range between 0 0179 and 0 0217 inches thick according to a university of north carolina at chapel hill resource. Conforms to astm a1008 a1008m for uncoated and painted deck a653 a653m for galvanized deck. There are even different ranges referenced for steel versus galvanized steel. Each number represents a range of inches 0 0179 to 0 0217 for example so two roofs may have the same gauge but slightly different thicknesses.

Please check with your local new millennium facility for lengths outside these parameters. Kynar aluminum for metal roofing. Gauge is the thickness of the metal used for a roof. 0 7 mm 0 8mm and 1 5 mm.

Where rigid roofing insulation is used with b deck a minimum 1 inch thickness is required. B deck is available in lengths from 6 0 to 40 0. 2 2 lb ft galvanized 2 1 lb ft painted type b roof deck 18. For example one company might sell a product as being 24 gauge but in reality the thickness of the metal could vary from 0 018 to 0 0335 based upon exactly how that company looks at things and how big of a tolerance they allow for.

26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4. Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength. 0 027 or 0 032 for seamless gutters and any other thickness for custom gutters. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.