Green Building Store is now 21°

The Cube, Somerset

MAS Architectural Consultants designed The Cube to meet the clients’ need for a garage/ guest house/ studio to replace an existing single storey garage with a two storey structure with the same footprint.  The project was built by Somerset firm Fawcett Construction and completed in 2012.

21°'s FSC timber PERFORMANCE triple glazed doors and inward opening windows were specified for the project.

Energy efficiency and sustainability were given a high priority in the project , which was designed to meet the AECB Silver standard with regard to space heating (40 kWh/m2/year). This was achieved by reducing the heat loss from the building as much as possible and by optimising the energy gained from the sun. The building is well insulated and well sealed to reduce draughts.  As the building has intermittent usage, it needs to heat up quickly and use very little energy to keep warm so a super-insulated compact form was chosen. The timber framed cedar clad structure was chosen to provide a thermally lightweight building suitable for intermittent use.

We needed energy efficient and well-sealed windows and doors for the project. Having researched a number of ranges and undertaken a cost-benefit analysis, PERFORMANCE won on price by offering the best U value for the price the clients could afford.

Nigel Humphrey, Director of MAS Architectural Consultants

The PERFORMANCE windows and doors have now been installed at the Cube for over six months and have been performing well.

I am pleased with the quality and standard of the PERFORMANCE windows & doors at the project and am considering specifying them again for other projects, including my own home. We have been very pleased with the quality of construction and efficiency of the doors & windows in what is quite an exposed location.

Nigel Humphrey

Project details



Case study


Life changing homes