It would be interesting to see the affect by measuring various hulls with one of those portable heat sensors. I really don't think it is a big problem. For one, the water acts as a big heat sink. Secondly the angle of the freeboard will reflect more sun light especially during the summer when the sun is high. Thirdly here in So California where the average days run in the mid 70's on the coast has little affect on the cabin temperature. In Florida that might be a different story.
Here's an idea, buy a temperature gun on Ebay and make an entertaining video of yourself measuring hull temperatures in Long Beach.
If you want come on up to tre sheik MDR where we have a ton of boats with dark hulls.
http://www.ebay.com/itm/Non-Contact...670?pt=LH_DefaultDomain_0&hash=item3a74ae79ce
Here's an idea, buy a temperature gun on Ebay and make an entertaining video of yourself measuring hull temperatures in Long Beach.
If you want come on up to tre sheik MDR where we have a ton of boats with dark hulls.
http://www.ebay.com/itm/Non-Contact...670?pt=LH_DefaultDomain_0&hash=item3a74ae79ce