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Getting hit with a huge utility bill is unpleasant, but it’s even worse when you know that it’s high due to heat or air conditioning loss through the doors, windows, or walls. Fitting exterior walls ...

Solid wall insulation is an extra layer of insulation on an external or internal wall, while cavity wall insulation is injected into the space between the two layers that make up the external walls.

Internal wall insulation isn't for every home. While it's easy to assume insulating every surface in your home will lead to greater energy efficiency, it isn't the case with internal wall insulation.

We have cavity walls in our home and I’ve heard we can get insulation to fill them for free from our energy supplier. I’m keen to do this, as it should make a difference to our energy bills, but I’ve ...

A dirty little secret in the building industry is that the promised r-value of a wall is usually just a measure of the cavity insulation in a perfect installation. Often the installation of insulation ...

Rosanne is an interior design and home improvement writer with 8 years of experience. During that time she has worked with numerous businesses and publications. Rosanne has been with Forbes Home for ...

The National Energy Technology Laboratory (NETL) reported in its January 2010 Tracking New Coal-Fired Power Plants report (PDF) that a total of 22 coal-fired units are under construction in the U.S., ...