IMPORTANT NOTICE: This blog post documents and discusses how I insulated an area of my boat, it does not constitute advice on the best way to insulate your boat. Before undertaking a project such as this you should consult a qualified professional.
One of the things I learned from last winter is that life aboard can be a drippy affair. When the temperatures drop outside and the warm, moist inside air comes into contact with the cold hull condensation will form. This was particularly a nuisance for me in the closed spaces like the lockers and where things touch the hull like cushions, mattresses and bedding. My solution was to insulate the hull and below I describe how I did this to a portion of my boat and eliminated the condensation problem in that area.
- 2.5 cm (~1″) R-5 closed cell foam insulation rated for ground contact and moisture.
For this project I chose Owens-Corning Foamular™ 150. Read more about Foamular™ 150
- Reflectix™ double reflective radiant barrier. Read more about Reflectix™
- Builder paper (for templates)
- LocTite™ Power-Grab, heavy-duty outdoor rated construction adhesive. Read more about LocTite™ Power Grab adhesive
*** A note about the adhesive: Ideally an adhesive that will quickly harden when used between non-porous materials would have been best, in my case I settled for a water-based, low VOC adhesive because of 1) concerns about adequate ventilation the space in which I was working, and 2) I live aboard my boat and didn’t want to risk breathing harmful fumes as the adhesive set. The downside of this decision is that it could take a long time (probably months) for the adhesive to fully harden.
- box cutter knife with a long blade
- caulking gun
- masking tape
Location: Onboard Sérénité, Back Creek, Annapolis, Maryland, United States, North America