Shipping containers suffer with condensation worldwide. Closed cell foam stops the condensation by bringing the dew point to within the foam and since moisture cannot travel through closed cell, no moisture can reach the dew point and condensate.
During the winter months, garages with metal roofs all suffer from high levels of humidity and condensation. Spray foam will stop condensation forming from as little as 25mm. It will also expand to seal around the edges of the garage roof and bond the metal sheets together, meaning no warm air will be lost.
Boats are notoriously difficult to insulate because their curved shape. Closed cell spray foam is sprayed in-situ directly to the metal surface and will expand to insulate all of these difficult areas. The fast application of spray foam also makes it an excellent insulation choice for boats.