Prepainted Galvanized Iron Ppgi Corrugated Metal Roof Panels

Thickness is a crucial factor for strength and sturdiness .
Minimum recommended thickness:

0.551 mm (26 gauge) for permanent shelters and shelters subject to snow loads.
0.475 mm (28 gauge) are often used for shelters when the wind speed is less than 250 km/h, the space between laths/battens/purlins is 0.50 m maximum and therefore the area isn't susceptible to snow.
0.4 mm (30 gauge) are often used for shelters when the wind speed is less than 200 km/h, the space between laths/battens/purlins is 0.60 m maximum and therefore the area isn't susceptible to snow.
In exceptional circumstances like major difficulties of accessibility (mountainous and remote areas), it's possible to use exceptional solutions à choose thinner CGI sheets to scale back the load of the transportation, if CGI sheets need to be carried by humans or animals. during this case, the roof frame must be modified à the spacing of the CGI sheet support (lath/batten/purlin) must be reduced to stay its strength. In such cases it's highly recommended to hunt the recommendation of a shelter expert.