Metal Thickness?

The metal thickness for metal roofing is commonly made in 24, 26 or 29 gauge material, and sometimes in 22 gauge. As you probably know, the higher the number (or gauge measurement) the thinner the metal, and, the lower the cost. 29 gauge is minimum for code for residential roofing in most areas.

The thickness of the metal has a great deal to do with the longevity factor as well as curb appeal or the ability of the metal to maintain its form. Although we recommend the 24 gauge thickness the 26 gauge will be adequate in most cases and will save you a few bucks.

Thicker metal (lower number gauge) is more spendy but you will have better results. A thicker metal panel holds up better to the abuse it experiences day in and day out. Oil canning will be less of a problem but to eliminate it make sure a striation roller is used to crease your panels providing greater strength and eliminating oil canning. Thicker equals a stronger panel resulting in better walkability, and a nicer looking panel for a longer time period. It is better able to handle abuse, avoid damages caused by falling objects, like hail, other flying debris and careless humans.

The thicker metal will not only provide a longer life but it will be less prone to damage from wind, hurricanes, intense heat and other harsh elements. Damage can also be caused in certain maintenance operations such as cleaning, or the installation of skylights or a new hookup for the TV, etc. The thinner gauges (higher numbers) are more prone to denting when walked on or when hit accidentally by a falling tree branch or a wayward golf ball.

In fact, with some of the thinner gauge metals you can actually poke a pencil through it. Not on my roof thank you!

Metal roofing material here is too thin for this application,
but, it probably keeps the rain at bay.

In review:
Metal Thickness may affect:

Longevity

Hail and wind resistance

Maintainability of panel form

Walkability

Oil Canning and other potential distortions

Other damage

Curb appeal - Beauty

I think you can now see that thickness or the gauge of your metal roofing is an important consideration. Think this one through carefully and find the money to go thicker if at all possible.

Also, keep in mind that the thickness of your metal roofing within any given gauge varies as well so buy carefully. For more on this subject click here.

Metal Roofing Panels

Metal Thickness

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