The gauge of a metal roof refers to its thickness and the higher the gauge the thinner the metal.
Roof thickness mm.
The min thickness of the roof slab should be 6 inches and maximum it can go up to 13 14 inches for span up to 7 m long.
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.
The thickness of aluminum roofing sheet in most nigeria market ranges from 0 7mm to 1mm thickness the thicker the roofing sheet the costlier it will be.
Four are epdm membranes and the fifth is a polyurathane liquid.
A good contractor will clarify the client with different ranges of aluminum roofing sheet thickness in the market and their cost while a bad contractor will not do that.
Standard asphalt shingles add very little thickness to the roof because a standard three tab shingle is about 3 16 inch thick.
When installed however the shingles overlap doubling the thickness.
Other types of shingles including number 1 wood cedar shake and tile are thicker although the thickness depends upon the individual brand of shingles you select.
We sell a total of five roofings systems.
Each gauge represents a nominal decimal range.
The thicknesses are listed below.