The attractive, aesthetically pleasing shutter design makes the Delta Insudoor the ideal solution for any modern architecture, whether industrial, commercial, retail or domestic environments. With a wide range of uses throughout most applications the high quality and compact nature of the shutter make this a first choice for any structural opening where security, insulation, reliability are required while space is at a premium. Insudoor meets today's architectural demands for aesthetics, reliability, performance and safety in use. The curtain is constructed from pre-galvanised material with Ecotech formula with CFC free foam injected into the 94mm multi ribbed twin walled lath section to provide a thermal performance that minimises energy waste, both with heat 'flow through' and round the curtain. The thermal qualities produced by this highly effective foam means that 25mm of Ecotech foam insulation is equivalent of 40mm conventional polystyrene insulation.