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 is the amount of matter contained in a body. Mass of the body is the constant quantity and does not change with the change of position or location. Weight 1  : Weight is the force by which the earth attracts a body toward its centre, Or we can say it is the force on the object which is offered by the gravity.