Architect: Warehome Ltd
Passive Architect: Architeco
Main Contractor: Warehome Ltd
Engineer: E D Halford
Design & Supply: JML Contracts Ltd
Case Study PDF: Click here to download
Our client in London approached us to engineer and supply a SIPs (Structural Insulated Panels) kit for his ‘skinny’ house plot in East London. These plots are becoming increasingly popular with limited space for new builds in city centres, coupled with the premium property prices London commands. Planning was granted for a cleverly designed ‘compact’ property on a site of 9.5m x 4m, which is potentially the smallest two-bedroom house in London. The innovative design utilised every available space, incorporating both a basement and a roof terrace.
The owner was very keen that his home achieved Passivhaus certification and could boast exceptional thermal performance and u-values. After extensive research, he came to the conclusion that SIPs (Structural Insulated Panels) were able to provide him with the best construction method for this purpose.
Although not a local supplier, JML Contracts was awarded the job of designing, manufacturing and cutting this SIPs house kit for the client.
Building in city centres and restricted spaces is always a challenge. Due to the City of London’s stringent restrictions on ceiling levels, the floors had to be designed and made to a maximum of 150mm thickness. A Heat Recovery Ventilation system (HRV) was installed to ensure a healthy circulation of air throughout the house, due to the airtight nature of the SIPs kit. The project required the clever design of a suspended concrete floor slab on steel/brick plinths to prevent excessive thermal bridging.
We provided the design work, engineering and the structural SIPs kit for this project. In order to preserve his budget, our client erected the SIPs kit himself on site, along with most of the follow on works. His home achieved the full Passivhaus certification as required.
This project was being followed by the Grand Designs television series and Kevin McCloud and his film crew came to our SIPs factory in Perthshire to capture the full erection of the house kit prior to delivering it to site. This was the first time the Grand Designs team had filmed inside a SIPs factory and also the first time they had ever completed a pre-construction.
This project was featured on the Grand designs TV series on 25th October 2017.
“Working with JML Contracts was great. They were knowledgeable and eager to advise, acting almost as an extension of my own team. After a thorough build up tweaking the design with the engineering team to be just right, the factory team were able to turn around the manufacturing incredible quickly. The design of the kit was suited to the tight site and the team were on call for any support required whilst I built the kit over 400 miles away! The structure was erected by hand within a week. Testament to the process and the way JML Contracts work!”
Client: Joe Stuart, Warehome Ltd, www.warehome.co.uk