Metal Roofing Vs. Traditional Shingles: How Much Weight Can They Bear?

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When you want to build a nice little chalet in the foothills of the Alaskan mountains, what kind of roofing do you choose? You could go with traditional shingle roofing, which is your cheapest option, but there is also metal roofing as well. The big question is, how much weight can these roof types bear, in the event of an avalanche or another major disaster? Knowing this information will help you choose what is best for your Alaskan chalet.

Asphalt Shingles (Traditional Roofing Material)

Not surprisingly, you will not find the information for the tensile strength (i.e., the level of strength applied to a material under tension; hence, tensile, which also applies to weight) of asphalt shingles anywhere. This kind of roof is not designed to hold weight. It is only meant to keep a basic roof on and prevent the elements from destroying the interior of your home.

You can walk on a roof if you weigh less than two hundred fifty pounds if that helps you figure out the tensile strength of this roofing material. However, you should never slide or jump on it as the result may be quite disastrous. Since you need a roof to withstand the battering weight of an avalanche, asphalt shingles may not be the best option for a chalet surrounded by mountains.

Metal Roofing

On the other hand, metal roofing manufacturers go above and beyond to provide the tensile strength of various metal roofs. A 22-gauge steel roof is one of the strongest and thickest roofs you can buy, while the 29-gauge is the most basic and thinnest of steel roofs. Metal roofing companies strongly advocate for at least a 24-gauge metal roof to withstand impacts. 

Therefore, a metal roof on your chalet is a very good option indeed. You may want to go with a 22-gauge or better if it can be found, purchased, and installed. It can withstand up to 100,000 psi (pounds per square inch) of pressure. That means that if a lesser avalanche heads right for your chalet, the roof will stay put, even if the rest of the chalet does not! If the avalanche comes straight down on top of the chalet's metal roof, you have a very high rate of survival, as does the chalet.

Positioning of Your Chalet

Lastly, it must be said that if you are going to build your chalet in the foothills of the Alaskan mountains, positioning is key. Geological architects can help you make sure your chalet is facing just the right direction to withstand some of the brute force power of most avalanches. Your choice in metal roofing should handle the rest.

Contact a company like Southern Pride Roofing & Construction, LLC. for more information and assistance.