Have you or any others had any problems with excessive heat under your trailering covers? I bought a cover last fall for my 2005 horizon. The previous owner kept it inside year round and only had the bow and cockpit covers. I wanted better rain protection so I bought a cover from iboats. It is a semi-custom (could not find a custom for my 2005) sunbrella cover, but it is dark blue. It gets hot as hell on a warm summer day and I noticed that the vinyl striping along the top of the deck on both sides of the bow has become deformed. I am assuming it is from the heat under the cover. Maybe I should have ordered a four winns cover like this:
viewtopic.php?f=12&t=11901I love the cover. Keeps the boat so much cleaner. I'm considering having some sort of reflective liner sewn into the cover where it wraps around the bow to lower the temperature on the top of the deck.