Executive summary: The I-House System incorporating Celcon storey height AAC Elements has been specified for use on 164 units on the Norton Farm site in Bromsgrove. The I-House System, a collaboration between Saint-Gobain Roofspace and H+H UK, provides the speed of offsite construction with the familiarity of a traditional build.
Project Description: Norton Farm, located less than a mile from Bromsgrove town centre, south west of Birmingham, is a development consisting of a total of 316 units. The I-House System is being used for 164 of those plots.
Each unit is constructed by a three-man gang + crane operator from Roofspace. This has solved one of the critical challenges faced by Barratt Homes in the Midlands, with a shortage of skilled labour creating a delay in construction. A crane lifts each Celcon Element into place where is it secured using a fast-setting mortar specifically created by H+H for use with Elements.
By using the I-House System the external brick façade has been taken off the critical path allowing the ground floor, first floor and roof to be completed, finished and wrapped in insulation prior to bricklayers arriving on site. A bespoke scaffolding system has been created to allow bricklayers enough space to operate while the scaffold remains in place.
The walls achieve a U-Value of 0.27W/m2K – similar to that in a traditional build – with roofs achieving 0.08W/m2K and floors 0.2W/m2K.