How to Control Moisture in Your Boat Cabin

What You'll Need
Moisture absorbers

Controlling moisture in a boat cabin is very important in helping to prevent the appearance of mold. Excessive mold can not only look and smell bad, but it can also cause damage to your boat and make the atmosphere considerably unhealthy. Enough moisture buildup can even cause rot, lending to major problems with the boat. Getting control over the problem quickly is very important to maintain the lifespan of your boat. There are various easy preventative methods that can be deployed to achieve this and, ideally, they should become an everyday part of your boat maintenance routine.

Step 1 – Place Moisture Absorbers

Moisture absorbers placed strategically around the cabin of the boat can help to regulate the humidity of the atmosphere. These look rather similar to small, portable air fresheners and can help regulate the atmosphere by taking in excess moisture from the air and storing it. You can place these around the cabin of the boat to help improve the atmosphere and lower the risk of an excessive buildup of dampness. This will help to protect any wood, carpet, upholstery and electronics that you have in the boat cabin. They should ideally be placed in areas of the cabin which are most prone to moisture. Good areas to place moisture control products in a boat cabin include near any hatches, portholes or vents.

Step 2 – Use a Dehumidifier

A dehumidifier is a machine that can very effectively keep the climate of a room under control by getting rid of excess moisture in the air. They are easy machines to use and they do not draw much power, especially ones which are specifically designed for marine use. To keep the atmosphere under control inside a boat cabin, a dehumidifier can help and, in some situations and climates, can be essential, especially when the boat is not in use and all of the hatches and windows are closed. A dehumidifier collects moisture from the air and transforms it into water. This water is then gathered in a bucket or tray inside the machine. When this is full, the machine will automatically switch itself off and you will need to empty the tray before continued use.

Step 3 – Ensure that the Boat Cabin is Adequately Ventilated

It is very important to ensure that the boat is adequately ventilated, especially when there is no one on board. If there is inadequate ventilation, damp can build up very quickly inside the cabin and cause damage. When you are using the boat, have the hatches in both the stern and bow open a little as this will allow air to circulate right through the boat. When the boat is not in use, ensure that the vents are open and none of them are blocked. Any boat should already have adequate ventilation, but, depending on the local climate, it may be necessary to take extra precautions.