Most energy companies are now offering free home insulation. For example British Gas, Eonenergy and Scottish Power all offer this but some may include other deals to be taken to enable the free home insulation offer to be completed.
One can find information on insulation R values via Wikipedia where there have a definition and a list of the types available. One can also find information on The Home Depot website.
Loft insulation is a relatively inexpensive and easy way to save on energy costs. The cost of insulation varies depending on the size of the loft area. Local insulating companies will come to your home and give you a free quote for your insulating needs.
I would consider going to Home Depot or any other home improvement store to buy cheap insulation foam. If they do not have it, ask them where you can find it. They usually know the answer as it is their area of expertise.
The Home Depot has a comprehensive guide on how to install insulation in an attic. Additionally, Energy Star offers a similar guide for installing insulation in an attic.
Polyurethane foam insulation is the most popular insulation on the market today. It is easily installed, it is sprayed into the walls where it coats and hardens. All home improvement stores carry it.
Crawl space insulation is something you put into crawl spaces in your home to keep out the cold. Crawl space insulation can be purchased at home improvement stores like Home Depot and Lowe's.
One can purchase insulation batts from a number of different places. Generally, Home Depot is a good store that has a wide selection of insulation batts to choose from.
One can find information about free home repair grant at your electronic adviser. Another great way of finding information about this subject is by looking at moneysavingexpert.
You can install a culvert such as this one, which carries overflow. For one week, BuildingGreen is offering a free download of an insulation.
In order to get free insulation for British gas company you have to fulfill requirements such as having the right postal code. If that is so, you call the company, book a free survey and there you go!
One can find information on thermal insulation from Insulate, Government site called Energywise, Energy Star, British Gas and Energy websites. Thermal insulation is used to reduce heat transfer from one object to the other.
Information about how to best insulate windows can be found on the Home Depot site. Someone can also find information about window insulation on the Sears website.