A draughty, energy-hungry Victorian villa in Brighton called The Nook has been transformed into an energy efficient home thanks to a retrofit using insulation from Kingspan.<br> <br> The Kingspan Kooltherm Krange of premium performance insulation was an essential part of the build, Kingspan says.<br> <br> Removing The Nook's concrete slab floor was judged to be too costly, but by taking advantage of the property's high ceilings, and by using Kingspan Thermafloor TF70 high performance insulation, the design team were able to simply raise the floor level to form an insulation layer to the depth of the first step of the staircase – achieving a U-value of 0.13.<br> <br> The property posed several other architectural challenges, including having a large amount of surface area to insulate. In order to solve this problem, Kingspan Kooltherm K5 External Wall Board was applied to the exterior walls on the sides and back of the property.