Roger Mcmillan wrote:
I'm building a 36ft aluminum Van de Stadt and I'm not sure how far down the
hull I need to spray my insulation. Should I go just to the waterline, or is
it better to spray almost to the bilges?

Thanks

Just to the waterline is absolutely standard. You can't insulate
against the cold from the ocean. But you can insulate under
floorboards with rigid foam too, to keep the cold at bay.

Evan Gatehouse