Marine Grade Thermal Barriers
Waterborne commercial vessels, barges, and narrowboats face arguably the most challenging thermal environment of any structure.
The steel hull of a vessel is constantly submerged in or surrounded by low-temperature water. When internal heating is applied within the cabin for occupant comfort, the cold steel hull acts as a massive condensation surface. This moisture easily penetrates and gets trapped behind standard insulation panels (like pinned PIR boards or rockwool). This phenomenon, known as interstitial condensation, causes devastating black mold, damp smells, and unseen internal steel corrosion that can eventually compromise the integrity of the hull.
The Ultimate Vapor Barrier
Closed-cell spray foam is the authoritative, undisputed solution for the marine industry. Because it is applied as a liquid and expands to bond tenaciously to the steel substrate, it entirely eliminates the dew point within the wall cavity.
It follows every contour, rib, and stringer perfectly, leaving absolutely no air gap for moisture or condensation to form. This ensures the structural integrity of the steel is preserved for decades.
Advantages for the Marine Sector
Stop Hull Degradation
Stops rust and hull degradation dead in its tracks, protecting your most valuable asset, preventing costly dry-dock repairs, and maintaining long-term resale value.
Superior Acoustic Dampening
The dense cellular structure greatly reduces the transmission of engine vibrations, generator noise, and the hollow sound of water slapping against the hull.
Space Maximization
Because polyurethane has the highest R-value per inch of any insulation, thinner layers are required to meet your thermal goals, maximizing precious interior cabin width and headroom.
Secondary Buoyancy Support
Closed-cell foam is highly hydrophobic (it does not absorb water). In severe emergency flooding or hull breach scenarios, it can provide critical secondary buoyancy to the vessel.
Protect your marine investment
Contact our marine insulation specialists for technical advice and a bespoke quotation for your vessel.