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.
How much does a bundle of shingles cover? Quick Answer. One bundle of shingles covers approximately 33 square feet of roof, depending on the size and weight of the shingles. Typically, it takes three bundles of standard-sized, standard-weight shingles to cover 100 square feet of roof surface.