The KayFlô House has been designed to minimize maintenance.
The structure is made of polyester covered with gelcoat which is cleaned with water. Today the first boats built in the 1960s with this material still exist if they have been properly maintained.
Maintenance of the paint of the hull (antifooling) will depend above all on the need for mobility. If you are planning little mobility with your floating house then you will not need to go out before 3 years. A dry dock of 3 days will suffice. With a copper-resin based antifooling you will be able to stay at least 6 years without getting out of the water.
The exterior woodwork is replaced with synthetic materials that have a similar look and feel for greater durability.
As for the renewable energy systems, solar panels have a lifetime of about 20 to 25 years and on-board wind turbines will have an average life span of 12 to 15 years. The batteries are without maintenance they have a lifespan of 5 to 7 years.