A boat cover is used by a boat owner to cover his boat, protecting it from water, dust, snow or other intrusions. Boat covers can be used while the boat is trailed, moored or stationed on land. Usually a boat cover can be secured with ropes or straps. http://www.wisegeek.com/what-are-some-different-types-of-boat-covers.htm

Depending on the type of the boat and the material used to manufacture it, there is a wide range of available boat covers. While some of them provide UV protection from the sun for boaters, others are used to protect the boat while it is being moored or trailed. Some materials used to manufacture boat covers are: polyester, canvas and other water-resistant materials. http://lakesidecanvas.com/cover_types.html

• Mooring Covers – are only used while the boat is on water. They can’t be used while the owner is towing the boat, and if they are used during winter, they must be cleaned after each snow. http://lakesidecanvas.com/cover_types.html
• Towing Covers – are specially designed to be used while the boat is towed. The material used is resistant to air friction, but they can’t be used during winter.

When purchasing a boat cover, boat owners need to be aware that some boat covers will need to be custom made. Besides the type of the boat, the owner has to know the typical weather conditions in the area where the boat is located and the exact measurements of the boat. http://www.boatcovers.com/bimini_tops.php?osCsid=56f3151e229716b9f87b3a9bac97e31c

Some boat cover manufactures ask owners to provide additional information for their specific watercraft, such as where the boat will be used and how long it's will be stored. Most boat cover retailers offer warranties for their covers. If the boat cover is broken, it can be replaced or repaired.