Hello, any thoughts on reducing heat build up in our increasingly hotter climate if no shade is available? I'm new to boating and have nearly finished fitting out my forty foot narrow boat and noticed ( especially last year ) how hot it can get . Has anyone tried solar reflective paint on the roof , how effective is it and is it suitable for a narroboat roof ? I've fitted three mushroom vents with computer fans which do a great job stopping condensation and because once I get an idea I have to try it out have fitted two fans to draw cooler air from below the floor space and out through vents in the wall panels . Also I've put aluminium Venetian blinds on every window to reflect the sun which when angled a certain way reflect the light from the water to give a pleasing rippling effect inside . Thanks in advance 👍