I'm gonna do some research and hopefully someone here, Cooter perhaps, has heard someone talk about them. Most reviews seem positive but it's hard to base anything on that. I'll probably call them for a quote to get an idea on pricing.
Rhino Shield is a franchised business. Never had any contact with them or their product. I'm not sure if they even manufacture their paint products. The concept behind ceramic particles seems plausible since the heat shields for the space shuttles were ceramic tiles. Their ad claiming to block 90% of the suns rays seems to be quite a stretch, but if true you wouldn't need air conditioning. This is speculation on my part but I'm quite sure when someone buys a RS franchise, they interview painting contractors, train them in their approach to application and the work is then subcontracted. Nothing lost in getting an estimate but your time. If you do, send me a copy of their proposal if they will allow you to keep it overnight to allow you to think about it. I understand it's quite expensive. If it's just the coating material you are interested in, contact Nationwide Protective Coatings in Sarasota. They manufacture a ceramic coating. I don't know anything about them either except what I read. Check their Super-Ceramic One Kote Low Lustre One Coat Acrylic Paint #2925-5 (5 gal ) for pricing and specs. Their website claims a 15 year warranty with a coverage rate of 200-300 sf/gal. Keep in mind this coverage would be under ideal surface characteristics, condition, and millage of product applied. My experience is mechanically applying coatings usually requires fogging 2 coats to achieve proper coverage to prevent holidays and paint runs assuming your cedar siding is rough sawn. Cedar also has a propensity to split after drying over the years. There is also a certain amount lost to the wind, priming, and hose and equipment cleanup. They should have a list of approved painting contractors familiar with their products. I'm going to guess their product is at least 20% more expensive than a top of the line exterior acrylic latex paint.
I truthfully wouldn't throw my money away on a 25 year paint job. For exterior paint I prefer Ben Moore, Sherwin Williams, and Glidden. Properly applied you should expect 10 to 15 years out of a properly applied conventional paint job, depending on weather extremes and sun exposure.
Whatever you do, make sure their estimate includes a bleach wash, pressure wash and rinse (2 step) and have all the bad or questionable wood replaced. Make sure they remove loose or improperly applied caulk. Prime all bare wood with an
oil-based exterior primer (Sherwin Williams makes an excellent one) and whatever paint you choose, make sure it's their very best and have them add a mildewcide to the paint. It's cheap. Good prep is one of the most important parts of a paint job. By the way, all paint used to last a really long time. Then they took the lead out of it.
Bah blah blah blah
