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.
Galvanized iron roof thickness.
Wave height 25 28 35 7.
Each gauge represents a nominal decimal range.
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.
The problem with metal roofing gauge is that there is a wide range of tolerances.
26 gauge 24 gauge 20 gauge 18 gauge 16 gauge 14 gauge 1 8 and 1 4.
0 475 mm 28 gauge can be used for shelters when wind speed is lower than 250 km h in a region not subjected to snow.
0 551 mm 26 gauge for permanent shelters.
While 26 gauge and 24 gauge are generally the standard for most commercial and residential installations some choose to work with 29 gauge because it is more affordable.
24 gauge 20 gauge 18 gauge and 16 gauge.
Kynar aluminum for metal roofing.