The challenge
Barns are typically built for shelter rather than comfort, with thin, uninsulated roof and wall sheets that offer little thermal resistance. At the Hobbledown farm attraction in Surrey, a barn used as part of a visitor and animal environment needed to be warmer and better controlled than its original agricultural construction allowed.
Uninsulated metal and sheet barn roofs are also a prime site for condensation, where warm, moist internal air meets a cold underside and drips back down. The structure needed an insulation approach that could follow the profiled sheeting and frame continuously, in a working space, without major rebuilding.
The ThermoFoam solution
ThermoFoam applied Enverge closed-cell spray foam to the underside of the barn's roof and structure. The closed-cell foam self-bonds to the substrate as it cures, following the profile of sheeting and the building frame to form a continuous insulating layer with no gaps or fixings, exactly where a barn roof loses heat and forms condensation.
The single application both insulates and seals against air movement, raising the internal surface temperature so the cold underside that drives condensation is warmed and the risk reduced. ThermoFoam worked to the manufacturer's specification, controlling foam thickness across the barn for an even, durable result.
The result
Hobbledown's barn became a warmer, better-controlled space with the condensation risk of a bare agricultural roof addressed, supporting its use as part of the visitor attraction. The Enverge installation carries a 25-year manufacturer-backed product warranty, giving the operator long-term value from a single upgrade.
