The web technology has brought out many innovations including web based Calculators.

The free library has released the ultimate list of Calculators by the Free Library:

Here are some more Calculators for Environmentally friendly Building Products, nature, temperature and the environment:

Energy Efficient Roofing Calculators :

http://www.metalroofmanufacturers.com/roofing-calculator.html

Residential Roof – Cool roofing Calculator

Green Building Construction Calculators :

Reducing Carbon footprint for Construction Calculator

Solar Hot Water System Calculator

Co2 Foot Print Calculators :

Carbon Calculator