To cover or not to cover?



This fire started when an owner unfamiliar with the process tried to shrinkwrap his boat. Shrinkwrapping is a job best left to professionals.

Custom-made winter covers, typically canvas or synthetic, are a terrific benefit to your boat's gelcoat and general well-being. Some skippers mistakenly believe that biminis, which shield the crew from glaring sun, will also protect the boat from freezing rain and snow. Quite the contrary — expensive biminis tend to get ripped apart or age prematurely while doing nothing to protect the boat. Biminis should be stowed below, or better yet, taken home and cleaned over the winter.




Plastic tarps typically will begin to shred after the first blow, leaving your boat unprotected.

More frugal skippers seem to think that a few tarps stitched together with a spiderweb of lines qualify for winter duty. In the first serious storm, these end up shredded, and in their death throes they often deposit large amounts of snow and ice into the boat they are supposed to be protecting.









Frozen meltwater can damage thru-hull fittings.

A good well-supported cover offers many benefits. It keeps leaves and debris from clogging scuppers and causing the boat to flood when a downpour comes or the snow melts. It keeps snow from accumulating in the cockpit and forcing the boat underwater in its slip or damaging thru-hull fittings on boats on the hard when meltwater freezes. It protects the deck from pooling water that can lead to delamination and freeze damage. And it protects gelcoat on the deck and coach roof from the elements, extending its life.

The best covers are custom made from canvas. With any custom cover, a frame, either wood or aluminum, should be used to circulate air and prevent pooling on the cover. Vents should also be built into the cover to encourage ventilation and reduce mildew. Never secure the boat's winter cover to the jack stands or support blocks because the stands can be yanked out during a strong blow.


Though shrinkwrapping is very effective at keeping rain and snow out, it will also trap moisture inside and create horrendous mildew problems if vents aren't used along the entire length of the cover. Another problem: Cabins and decks painted with two-part polyurethane paints may peel or bubble where the shrinkwrap touches it. Inserting a series of foam pads between the hull and cover allows condensation to escape. Finally, don't shrinkwrap the boat yourself. All it takes is a moment of inattention to ignite the shrinkwrap, and if the fire occurs inside the cover, it might not even be visible right away. This is one job best left to the pros.




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