The challenge
A hotel swimming pool hall is one of the most demanding environments for any building fabric. The air is kept warm and heavily laden with moisture, and where that humid air meets a cooler roof or wall surface it condenses. Over time this drives damp, corrosion and decay into the structure of a guest-facing leisure space that must always present well.
At Penventon Park Hotel in Cornwall, the priority was protecting a hospitality asset where comfort and appearance matter directly to the guest experience. Any insulation also had to address the roof structure cleanly, without seams or gaps that would let warm, moist air reach the cold deck behind.
The ThermoFoam solution
ThermoFoam applied Enverge closed-cell spray foam to the pool hall structure. The foam self-bonds to the substrate as it cures, forming a continuous, seamless layer that follows the roof and its supporting members exactly — with no boards, fixings or joints for warm air to bypass.
Because closed-cell foam is dense and resistant to moisture movement, it both insulates the warm pool atmosphere and helps keep humid air away from the cooler surfaces where condensation would otherwise form. Supplied by Duratite as UK distributor of record and certified, the specification suits a high-end hospitality setting.
The result
The pool hall now benefits from a warmer, better-controlled internal envelope, with the building fabric far better protected against the condensation typical of an indoor pool. The continuous, bonded finish supports a comfortable guest environment and carries a 25-year manufacturer-backed product warranty.



