Ive been paying the landlord (office landlord) for electricity. But now I (and he) realise half of the roof has not been properly insulated. So Id like to know how much wasted electricity/money has gone through the roof.
If my office is 4400 sq feet, second floor, modern with double glazed windows on three sides. Is there an industry standard I can apply that will estimate my energy consumption to heat it ? Or what goes through the roof.
Just a rough estimate based on some science will do as a starter for negotiation processes.