Top best answers to the question «Should i put a tarp over my boat cover»
Dirt, leaves, and debris will be kept out of your boat thanks to a tarp. It will also prevent birds and other animals from making a mess of your boat. Considering how much of an investment a boat is, it's a good idea to use a tarp to cover it and keep it safe and protected.
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Durability - as mentioned, the plastic tarps wear out in a couple years, and begin to disintegrate from UV exposure faster (a 'sacrificial anode' of boat covers), leaving little flakes of tarp all over your boat to be cleaned up whenever you want to use it.
One of the best ways to tarp a boat is with a heavy-duty, waterproof tarp. If you're covering a boat for winter or any other period of prolonged non-use, then you'll want to make sure the boat's components are protected from prolonged exposure to the weather, whether it's extreme heat, rain or snow.
The tarps will likely rub on the covers/hull more than a fitted boat cover will, especially around the windshield. I used a heavy duty tarp this year to supplement a 10+yr old boat cover that is on it's last leg.
To prevent this type of damage, as well as damage from the other types of weather, tarp of top quality will meet all your boat covering needs. When considering the best tarps to cover your boat, the white and silver heavy-duty ones are the best options. They are designed to hold up to the coldest temperatures and effectively cover your boat.
Myth: The tighter the boat cover, the better. Reality: Boat covers should be water tight, but loose enough to allow air to circulate. There’s a tragic tale described in boating magazine about a guy in the Florida Keys who wrapped his boat up tight to protect it from the wet summer season while he went out of town for six months. When he returned, he found a greenhouse of black mold and mushrooms growing inside his boat, making it a complete loss.
In the long run, a fitted cover and its supporting framework are probably the most cost-effective way of covering your boat. Over eight or ten winters, you'll spend a lot more on plastic or canvas tarps than you will on a fitted cover.
Use boat covers with air vents or leave space between the cover and the fastening surface to allow air access where it can circulate. The same goes for under-seat compartments and lockers underneath the boat cover, the tops, lid and hatches for which should be left ajar to allow some air to flow to minimize moisture build-up and curb the growth of mold and mildew.
A third way to cinch your cover to the boat is with webbing in the hem along with the use of a webbing ratchet such as this Pro-Grip® ratchet. If you use webbing and a ratchet to secure your boat cover, it should have it's own little storage boot or another creative way to protect the paint on your boat from the metal ratchet.
Other then snaps you really don’t have many options unless you get a custom cover made. My travel cover in addition to the straps has a ratcheting strap that pulls things tight below the rub rail. Don’t know that would work for you. It might be better to just pull the boat when you leave and put the cover on instead of leaving it in the water.
Conventional boat cover snaps work best when the base is on the same plane as the fabric itself. If the canvas is pulling too hard at the wrong angle, the snap will unsnap itself with the slightest pressure. Since there are plenty of odd angles on boats, this happens frequently. It can be a real challenge for boat covers to stay snapped.