Question
Do you recommend adding R-20 insulation to a 25,000 sq.ft. uninsulated roof (R-5) when you consider a 25-year life cycle with a rate of return
Do you recommend adding R-20 insulation to a 25,000 sq.ft. uninsulated roof (R-5) when you consider a 25-year life cycle with a rate of return of 8 percent? Assume the following:
Heating Degree-days: 5144
Cooling Degree-days: 987
Fuel Cost: $5/MMBtu
Boiler efficiency: 0.70
Electric rate: $0.10/kWh
Refrigeration requirement: 0.75kW/ton
Insulation cost: $0.225 per sq.ft
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The first step is to calculate the energy savings that would be achieved by adding R20 insulation to ...
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Financial Markets and Institutions
Authors: Anthony Saunders, Marcia Cornett
6th edition
9780077641849, 77861663, 77641841, 978-0077861667
