What is the best kind of house insulation, why?

Question:

Answers:
It depends on the definition of best with regards to insulation. Insulation is insulation, it all performs the same function which is to reduce the transfer of temperature. Best would be cheapest, and that would be Fiberglass. It is also the easiest to install with regards to building insulation. If you are going to buy the insulation yourself check out www.buyinsulationproducts.com where you can buy all types of insulation products.