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.
4. Dry fit and then cut tiles to size using a diamond wet saw. Dry fit your tiles to be sure that they will look the way you want them to look. Once you're comfortable with how it looks, figure out how the tiles will meet up with the corners and edges of your wall. If you notice a skin forming on top of the thinset mortar or tile mastic, do not install tiles over it. 2  Scrape it off using a paint scraper and apply fresh mortar before continuing. 3  Ceramic tiles can be applied to nearly any surface, including both painted and unfinished drywall.