Exploring the Quiet Erosion of Unused Vessels
A sailboat at rest looks timeless. It is a graceful silhouette against the dock, rigging gently humming in the breeze. Yet behind this placid exterior lies a paradox observed only by seasoned sailors and marine surveyors alike. More sailboats wear out through non-use than from the passage of years. Far from being preserved by inactivity, abandoned sailboats quietly decay until the cost to refurbish them is more than they are worth.
Remember the old quote: Take that sailboat, spend $75,000 and do two years of work and you will have a $35,000 boat. This is often true, the result being an abandoned project for sale for $3,000, if you can get it.
The Myth of Preservation by Inactivity
It might seem intuitive that resting a sailboat would protect it, much as a vintage car is kept from harm by remaining in the garage. Unlike automobiles, however, sailboats are dynamic entities designed to partner with water, air, and sun. Their construction with fibreglass, wood, metal, and many moving parts relies on regular motion, circulation, and attention. When idle, systems stagnate and die.
How Non-Use Accelerates Deterioration
Non-use accelerates deterioration in a number of ways:
- Moisture Intrusion and Mould: When a sailboat sits unused, air circulation within the cabin and below decks nearly stops. Hatches remain closed, and the breeze that would otherwise keep the interior dry is absent. This creates a perfect environment for moisture to accumulate. Over time, condensation settles on surfaces and in hidden recesses, fueling the growth of mould and mildew. These fungi not only create musty odours but can also cause structural damage to wood and fabric.
- Engine and Mechanical Issues: Marine engines are particularly vulnerable to disuse. When left idle, fuel can degrade, forming varnish-like deposits that gum up injectors and carburetors. Moisture may condense inside the engine, leading to internal rust on cylinder walls and other components. Rubber seals and hoses, designed to flex and compress, become brittle and crack. Batteries lose their charge and may fail entirely if left unmaintained. Lubricants settle, leaving some parts unprotected.
- Standing Rigging and Sails: Salt, sunlight, and wind are the enemies of rigging and sails, but surprisingly, regular use also helps prevent deterioration. Unused halyards and sheets become stiff; salt crystals draw moisture, accelerating corrosion on metal fittings. Sails left tightly furled or stowed can develop deep creases, mould spots, or rot damage, easily avoided by periodic use.
- Hull and Underwater Gear: A boat left idle in water is at greater risk from marine growth, such as barnacles and algae; when a boat is used, this washes off as ablative bottom paint rubs off. We have all seen boats that have been sitting for years with long streamers of plant growth hanging from the hull. Increased fouling slows the boat and can lead to more serious issues, such as the corrosion of metal underwater fittings.
- Neglected Systems: Every sailboat is a collection of systems: electrical, plumbing, electronics, and navigation. All are designed for use. When left untouched, corrosion can eat away at electrical contacts, wiring can be damaged by moisture, and pumps or sensors may seize up from inactivity. Plastics and rubber gaskets become embrittled, and even the compass fluid can develop leaks.

Top L: peeling varnish, no longer protecting wood; Top R: Lichen growing on deck: Bottom L: marine growth on ladder left in water; Bottom R: broken topping lift (also peeling varnish and lichen). (Photos courtesy of Bjarne Hansen)
The Psychological Trap: Out of Sight, Out of Mind
Owners often fall into the psychological trap of believing their boat is safe if it is docked or stored. Yet a sailboat needs regular care. Deferred maintenance becomes a mounting list of tasks, and small faults develop into expensive repairs. The longer a boat is left idle, the more daunting the prospect of reviving her becomes, leading to further neglect and, ultimately, abandonment.
The Benefits of Regular Use
There are a number of benefits of regular use. These include:
- Continuous Maintenance: Using a sailboat regularly means that issues can be spotted and addressed early. Seals remain supple, engines turn over, and sails are aired out. The act of sailing itself is a kind of maintenance: water washes the hull, movement circulates air, and systems are tested in real-world conditions.
- Connection and Investment: A sailor attuned to their boat’s quirks and idiosyncrasies is more likely to notice subtle changes, such as an unfamiliar noise, a slight stiffness in the tiller, or a new drip in the bilge. This proactive awareness and subsequent timely maintenance prolong the boat’s lifespan.
- Value Retention: A well-used and properly maintained sailboat holds its value significantly better than a neglected dock queen. Prospective buyers want proof of consistent upkeep, and surveyors will easily identify the signs of a vessel that has been left idle. Logbooks filled with voyages and service records inspire confidence, as does a well-used maintenance log.
Case Studies: Lessons from the Marina
Walk any marina, and you’ll see two types of boats: those that are someone’s pride and joy and those that are dying, their decks stained with seagull droppings. The former are sailed often and tended to with care. Even if newer in age, the latter display the unmistakable signs of decline: peeling varnish, faded sails, and seized winches. Stories abound of decades-old boats in excellent condition due to regular use, while newer boats fall into disrepair after only a few seasons of neglect.
Reversing the Trend
There are a number of simple practices to keep boats alive:
- The apparent solution is to use your boat regularly. Even short outings make a difference. A weekend cruise or an hour on the water keeps systems active and spirits high.
- If you can’t use it for some reason, at least maintain it with regular upkeep. Schedule a plan stating what is needed and when it needs to be done. Follow it, and if you can’t, arrange with someone else to have it maintained.
- Ventilate: Open hatches and lockers to circulate air, especially during hot or humid weather.
- Flush and run engines: Engines benefit from frequent startups and short runs to keep components lubricated. Change the oil regularly. Clean the bilges.
- Routine rigging, sails, and hull checks deter minor problems from growing.
- If you are aging out of boating, as we all will someday, you might want to face the facts that it isn’t wise to keep the boat sitting the dock for the few years it takes to conclude that your boat-owning days are over. It is a difficult decision but letting the boat deteriorate until it becomes a ‘project boat’ isn’t even fair to your boat.
- Another solution is to use it when you want and let someone else use it until they can afford to purchase their own boat. It might even be your boat they buy when you decide to sell.
- Find another sailor without a boat and have him exercise the boat. If you know someone mechanically capable who likes nothing better than puttering around on boats, ask them if they would do the maintenance and keep the boat in shape in exchange for using it. You would probably need to purchase the parts and materials required for upkeep, but they would supply the labour for free, and your boat will appreciate it.
Conclusion: The Living Vessel
Sailboats are more than just possessions; they embody freedom. They shouldn’t be hidden away for safekeeping but brought to life through regular use and attention. The adage holds: more sailboats are lost to neglect than to age. For those who love their boats, the best preservation is not idleness but the joy of setting sail, into the open blue waters of beautiful BC or beyond.



Great article John! Thanks so much for the great advice on keeping boats “alive”. The key thing is to use them as much as you can, and make as many memories as possible, as that is what you take away from boat ownership.
In March 2020 (beginning of Covid) the Canadian Government was advising travellers to return home and the NZ Government was advising travelers to leave – we got one of the last planes out. Little did we know we wouldn’t be allowed back into NZ until May 2022! When I got back my previously pristine boat was suffering from nearly all the issues you describe….it took 6 weeks of solid work to resolve some but not all of the issues! The boat was way better off when we were living on it and sailing regularly!
Mine too suffered during the pandemic, stranded all by herself in Brisbane. She was in a good marina, thankfully, but without human touch she languished and looked a right tatty mess when I finally got to her, 2-1/2 years later
Great article, sage advice. Walk around any marina and you’ll see plenty of vessels needing more exercise and deserving more attention than they get from their owners. The worst is when they start getting attention from otters! It’s not just boats; houses too like to be lived in, and get forlorn and abandoned-looking if left empty for too long.