The weight of metal roofing per square foot (2024)

FAQs

The weight of metal roofing per square foot? ›

If there are two layers there, it will weigh anywhere from 5.0 to 6.0 pounds/square foot. In most instances, a structure can only withstand a maximum weight of 10 pounds per square foot so you should be good to go as metal roofing is not very heavy.

On average, metal roofs weigh 1.4 pounds per square foot, while composition averages 2 to 5 pounds per square foot. A bonus of this extreme light weight is that many types of metal roofs can be installed over existing roof materials (like asphalt and wood shingles, for example) without compromising the roof structure.

For most residential buildings, the roof should be able to support a live load of at least 1.9 kPa or around 20 pounds per square foot for a wood or shingled roof. A roof made of more sturdy materials, like clay or metal, will be able to hold closer to 27 pounds per square foot.

Typically, a built-up roof weighs between 5-7 pounds per square foot. A comparative single-ply roof system is usually less than 1 pound per square foot. Ensure that your roof's weight load limits are exactingly calculated before installing a built-up roof system.

26-gauge Metal Roofing Material. Approximately 0.730 – 0.885 lbs/sq. ft. Regarding 26-gauge, it's usually considered the standard metal thickness for exposed fastener metal roofing.

The weight of a 29 gauge roof is about 9 ounces, while that of 26 gauge is 12 ounces. If you want to know how much 29 gauge metal roofing weighs per foot, experts say it is approximately 1. 5 pounds per square foot.

Sheet metal thickness gauges for steel are based on a weight of 41.82 pounds per square foot per inch of thickness. This is known as the Manufacturers' Standard Gauge for Sheet Steel.

The base metal of PPGI is carbon steel, whose density is about 7.85 tons/cubic meters. For example, if the PPGI sheet is 0.5 mm in thickness, 0.9 m in width, and 2.4 m in length, the weight per piece will be 0.5*0.9*2.4*7.85=8.478 kg.

Can a 300 lb person walk on a roof? ›

The short answer is yes. It's designed to withstand the combined weight of a temporary live load and a dead load to retain structural integrity. A clay tile or metal roof can hold a dead load of approximately 27 pounds per square foot.

Thus, a roof designed to a carry a snow load of 20 lbs.. per horizontal square foot is expected to support nearly 12 inches of wet, heavy snow. ( University of Arkansas Division of Agriculture)

If your roof is too heavy for your home's structure, it can lead to various issues, including sagging, cracking, and even collapse. Conversely, if your roof is too light, it may not protect against high winds and heavy rain.

This is the weight that comes from structural material itself. Stronger roof types including clay tile and metal roofs can have dead loads in excess of 25 pounds per square inch.

What is the weight of your 28-gauge metal? The weight is 2.1 pounds per linear foot.

To give an idea; asphalt shingles usually weight from 275-425 pounds per square feet, depending on brand and style. By comparison the average metal roof will weight around 100 lbs per 100 sq feet.