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.
Calculating square footage can be useful for many purposes. To ensure accuracy in sizing and pricing, we round all square footage to two decimal places. First, begin by multiplying the width in inches by height in inches. (For example, 12 x 18 = 216) Next, divide this number by 144. (Example, 216 divided by 144 = 1.5) The total square footage for one 12 x 18 piece is 1.5 Sq.Ft.