High performance rigid urethane insulation from market leaders Kingspan Insulation was the product of choice for Checkers, Red Houses, an out of town supermarket development on the island of Jersey.
Owned by CIT Estates, this prestigious £9 million project, which comprises a retail store area, associated offices, 12 staff maisonettes and full underground parking facilities has been put forward for the Jersey Design Award taking place in October 2006.
The unusual large semi-circular flat roof could not have any drainage outlets, and posed quite a problem for Naish Waddington Architects as the roof build up had to be restricted.
After consulting with the Kingspan Insulation technical department Kingspan Thermataper TT47 LPC/FM was specified for Checkers, Red Houses, an out of town supermarket development on the island of Jersey as it enabled the main roof drainage at the edges of the large semi-circular flat roof to be achieved without having to slope the slab or provide a screed.
After consulting with the Kingspan Insulation technical department Kingspan Thermataper TT47 LPC/FM was specified as it enabled the main roof drainage at the edges to be achieved without having to slope the slab or provide a screed.
James Naish, Director of Naish Waddington Architects said "Kingspan were very helpful with suggestions and solutions to our flat roof problems and the solution used was very efficient and cost effective. It was like them being part of the design team."
Designed for use under fully adhered single-ply waterproofing, Kingspan Thermataper TT47 LPC/FM ensures low heat loss through the roof, as well as preventing the build-up of rainwater, which can seriously decrease the life of a flat roof by subjecting the membrane to thermal stress, alkali formation and mould growth.
If correctly applied Kingspan Thermataper TT47 LPC/FM offers continuous high performance throughout the lifetime of the roof. It is lightweight and easy to install, resistant to water vapour, and unaffected by compression inflicted in the course of normal maintenance. With a thermal conductivity of 0.027 W/m.K, the boards can easily achieve the U-values required for compliance with Building Regulations.
The Kingspan Thermataper range has been designed to prevent the formation of water ponds (the most common cause of failure of flat roofs) by providing effective roof falls for both new and existing flat roofs. Each solution in the range has been specifically developed for use beneath a particular waterproofing membrane.
An independent study by highly respected Quantity Surveyors, Davis, Langdon & Everest, has singled out tapered insulation as the most cost effective water shedding option for warm deck flat roofing applications, yielding savings of up to 21%.