On Jul 11, 1:42*am, mike wrote:
Doug wrote:
On Jul 8, 4:13 pm, mike wrote:
The front of my house faces the evening sun.
When it's 100 outside, the brown front door is 184 degrees F.
Stuck a square of white insulation board in front of the door.
It got up to 107 degrees.
The light-gray house is at 164 degrees.
I started thinking about painting the front of the house white.
Did some online research and found mention of paint that's highly
reflective in both visible and IR parts of the spectrum,
but nothing on where to buy it.

Most info was about coatings for roofing.

There's even some ceramic sphere additive that claims to
cut solar heat gain to near zero. *Seems like if this worked
as well as they claim, it'd be everywhere. *Went to big-box
stores and dedicated paint stores. *Nobody heard of it.

Will repainting the front of the house buy me anything?
The walls are R19 and the windows are low-E R3.3-ish with SHGC of .3.
Door is fiberglass r5-ish.

Reflective paint recommendations?

Thanks, mike

Information that you are seeking can be found athttp://eaglecoatings.net/.

Not all CERAMIC INSULATION COATINGS are created equal! There is also a
vast difference between an insulating coating and a "reflective
paint". Any legitimate product will have the appropriate ASTM testing
that has been performed by an Certified Thermal Laboratory. The ASTM,
ASHRAE, ENERGY STAR, LEED, ICC, ECAP and other tests for SUPER THERM ®
Multi ~ Ceramic Insulation Coating can be found under Certifications.
http://www.eaglecoatings.net/content...ifications.htm

*I trust this is satisfactory for your purposes however should you
have any questions or require additional information please feel free
to contact me personally at

Best Regards,
Doug
D. W. ( Doug ) Pearce
President

Interesting.
If this stuff is as great as it sounds, it's the simplest thing one could
do to save energy. *The tree-huggers oughta be all over this.
Oughta be able to buy it in any home-improvement store.
California would have made it a requirement in building codes.
The fiberglass insulation people oughta be outa business by now.

But I can't find it anywhere. *Paint stores ain't ever heard of the stuff.
I can't find out what it costs. *Best I can find on the web is
a questionnaire that doesn't even promise a price quote.

The videos are cleverly constructed for "wow" factor, but not sure
how they relate to actual reduction in solar heat gain. *Blowtorches
on unspecified metal with THICK applications of supertherm seem
unrelated to what I need.

Got any data on performance vs color? *How much can I tint it from
blinding white...to keep the neighbors off my case...
when I paint the front of my house with it?

Any representatives in Portland, Oregon? *I'd like to drive-by
and see what it looks like. *And get some actual data in exterior
wall applications. *Most of the info I find is about roof coatings.
Where can I buy small quantities?

Thanks, mike- Hide quoted text -

- Show quoted text -

It isnt great and the reason it isnt "everywhere" is it isnt great. I
know folks at Sherwin Williams corporate, they did tests to market it
under their own brand 10 years ago, and they still passed. Im sure its
been tested to death and it would be mandatory code if it worked