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 adjective [before noun]. C1 having an âeffect on or âinvolving a âlarge ânumber of âpeople or âforming a âlarge âamount: âweapons of mass âdestruction a mass âmurderer mass âstarvation Opposition âgroups âplan to âstage mass âdemonstrations all over the âcountry.