SIGMA II BUILD SYSTEM

It provides a robust and effective solution to achieving high levels of fabric performance along with a more affordable, reliable and simple to install system - a fit and forget approach. With excellent air tightness, thermal bridging and thermal transmittance performance, the Sigma II Build System offers reduced material related costs by adopting conventional materials in a more innovative manner.

The build system also offers a range of offsite construction features, including:

Closed panel and fully insulated
Service cavity pre-fitted
Floor cassettes wrapped, air sealed and insulated
Built-in air tightness detailing and seals
Safer build system
Principle service penetrations pre-formed
Potential to air test, immediately after kit erection
Optional factory fitting of windows
Optional insulated ground floor cassettes
Optional insulated ceiling cassettes
Optional insulated roof cassettes

The extent of labour time has also been cost engineered through the simplification of the build system and the integration of several trades/suppliers into one package, thus eliminating non value adding site processes, which attract hidden capital cost and downstream cost overruns. Sigma II takes whole life costing into account as well as risk and home owner impact. As well as construction complexity, installation interfaces, performance, repair and maintenance, our approach has been to focus on fabric solution - recognised as the first priority.