I can’t say enough good things about radiant barrier.
Of all of the improvements, I made on my home, the Radiant barrier had the biggest impact.
I buy my radiant barrier from www.atticfoil.com. The company is located in Dallas They have over 1250 reviews posted on their website. They have plenty of videos to show you how you can do it yourself. Their prices are far better than the big box guys and the quality is far superior than what you would get at the big box stores. It defiantly takes 2 people to do the install. It is very easy to do and can be a good family project. The only tools you need; an electric staple gun, a utility knife, and a tape measure. Rather than go into much detail, go to their website and just spend some time checking it out. Of course this only applies if you have and attic space that is accessible and you don’t have foam insulation. If you have a foam insulated house my hats off to you, it doesn’t get any better than that, and you probably wouldn’t be reading my blog anyway.
If you have A/C equipment and/or ductwork is in your attic, it is a must. No matter how much insulation you have on your attic floor the duct work and equipment sits above the insulation and is exposed. There is tremendous heat that builds up in the attic. The radiant barrier is stapled to the bottom side of the rafters. It reflects the radiant heat back to the roof before it has a chance to get to your attic floor and the equipment that installed in the attic.
Most customers that install radiant barrier find that the air conditioner doesn’t run as often or as long.
I have a brother that lives in Phoenix, Arizona. His home was built in the 1940′s. It has no insulation in the walls and very little insulation in the attic. I sent him 2 rolls of radiant barrier. After installing it in his home his electric bills are less. Here is the really cool part (pardon the pun). He had enough radiant barrier to completely line his garage. I can personally attest to the fact that the garage was stifling hot before he did the radiant barrier. Now, you can go in his garage in the afternoon on a hot day and it is cooler in his garage than it is outside.
Radiant barrier is an excellent do it yourself project.