1 Steel shingle metal roof: Installation can cost at least $600 per square foot for the shingles. 2  Or run $750 per square foot for a standing seam steel roof. 3  Aluminum metal roof: Can cost anywhere between $700 and $1,200 per square foot.
Mass is the amount matter in an object. Mass is usually expressed in grams/pounds. For example, if you had a mass of 100 pounds and you went to the moon, you would still have â¦ a mass of 100 pounds, because there is 100 pounds of matter in you. However, your weight, or the gravitational pull on you, would change.
Mass and Weight. Your weight on the planet Earth is a function of our planet's mass. The mass of an object is a measure of how much matter it contains. If you had two bricks, one made of concrete and one made of lead, the lead brick would weight much more. This is because it contains more matter and is therefore more massive.