The concentration of creatinine is a better indicator of renal. function than urea or uric acid because it is not affected by diet, exercise, or hormones. The creatinine level has been used in combination with BUN to differentiate between. prerenal and renal causes of an elevated urea/BUN.
Roof surfaces are measured in squares.. A square is an area of roof which measures 100 square feet. To determine the number of squares on the gable roof above, simply divide its total of 24,000 square feet by 100. The result is 240, and this means you would need 240 squares of shingles to cover that roof.
Square. A measurement of roof area that equals 100 square feet (an area 10 feet by 10 feet). Slope. A roofâs slope is the number of inches it rises for every 12 inches of horizontal ârun.â A roof with a â4-in-12 slopeâ rises 4 inches for every 12 inches of horizontal run.The same roof has a 4/12âor 1/3âpitch.t has a 1/4 pitch. Roof slope is expressed as the ratio of a roofâs rise (vertical distance) to each foot of run (horizontal distance). A â4-in-12 pitchâ means the roof rises 4 inches for every 12 inches of horizontal distance.