The range is very easy to calculate because it is simply the difference between the largest and the smallest observed values in a data set. Thus, range, including any outliers, is the actual spread of data.
Re: Elastomeric Cool Roofing Systems Cost Per Sq? How Much You Guys Charging. Matrial and labor I can do them for $125 per sq depending on the project I can usually add between $75 up to $100 profit per sq and still stay competive with the competition.
1 Fanfold insulating material can vary anywhere from $4 to as much as $8 per square foot. 2  Fanfold insulation which is 1/4 thick and 4 x 50 feet in size can cost $42 to $55. 3  For example, the R1 1/4â² FanFold Underlayment Board for Re-siding sold by the company Menards retails for $34.