Resources

Wikipedia:

• http://en.wikipedia.org/wiki/Air_conditioning
• http://en.wikipedia.org/wiki/Roofing
• http://en.wikipedia.org/wiki/HVAC

Other:

• GAF Roofing- Resource
• GAF Roofing- Warranty
• Alside- Siding Resource
• Lennox- A/C Resource
• Amana – Resource
• Hydronic Radiant Heating and Cooling – Resource