I have a slump block wall which is bare on the inside and outside of
the house. This wall faces the South and during the hot Arizona
Summers, the rooms that share this wall get very hot that is about 20
degrees F or so more than the rooms that are on the North side.
Last year I had the core of the blocks filled with some form-like
material but that does not appear to help much once the temperature
goes over 100 deg. F.
Is there some kind of radiant barrier paint perhaps in clear color
that can be applied on the inside and outside of the wall? I am
suggesting paint as the first option because it is something I can do
If paint is not a good then what are the alternatives for reducing the
temperature in those rooms without losing the looks of the slump
Thanks for any tips?