I know there is a paint that claims to reflect infra-red (heat) radiation. The idea is to bounce you heat back to the house in winter and back to the exterior in summer. R generally refers to resistance to conducting the heat through the wall. I think they want you to put the paint on interior surfaces.

We've heard of the paint that you apply to the interior of the attic ceiling, that works as a radiant heat barrier, but have been unable to find it. Does anyone know where you may purchase radiant barrier paint?

We've heard of the paint that you apply to the interior of the attic ceiling, that works as a radiant heat barrier, but have been unable to find it. Does anyone know where you may purchase radiant barrier paint?

The paint is called Radiance and they have a web site: www.radiancecomfort.com

I've used their paint designed for attics and it works well. Kind of expensive, but pays for itself in the long run. Keep in mind this isn't an additive, but you can add color to their paint to achieve the look you want.

I bought from a local Sherwin Williams dealer, but they list other dealers on their web site.

This site has ceramic beads that you add to your paint http://ceramicadditive.com/850.html

You could also try www.icc-astec.com & www.supertherm.net

I have used them both with truly excellent results.

Brian Wood @ www.energysaviours.com coming soon.

I have considered using this, but I have a concern. Given that the ceramic particles are microscopic, is there not a potential for them to cause lung disease, if inhaled over many years? As people brush up against walls, wouldn't some of the tiny particles come loose, and get into the air, creating a health hazard? Ceramic dust is known to cause silicosis of the lungs.

Does anyone have any thoughts on that?

I found this action by the FTC against a company marketing insulative ceramic paint products... makes me wonder whether this stuff is all hype:
http://www.ftc.gov/opa/2002/04/kryton.htm