But this has been exacerbated by human activities which have led to: 1) an increase in greenhouse gas emissions that causes heat to remain trapped within the troposphere, and 2) a decrease in ozone in the stratosphere, causing less sunlight to be absorbed by the ozone layer, resulting in a cooling of the stratosphere.
When measuring for floor tile the rule is: Length x Width + Waste = Amount Needed. Waste Factor will vary based upon tile size, layout, configuration of room, patterns, etc. Typical waste factor is about 10%. Add 15% for tile being installed diagonally or for a room with lots of jogs and corners.
There are 144 square inches in a square foot (12 x 12 = 144). So divide 324 by 144 to get th â¦ e square feet per tile. 324 / 144 = 2.67 sq ft per tile. You have 275 square feet, using tiles that are 2.67 sq ft each.