Space

ROOF SPACE

During 1996, Laing Homes made an extra profit of £10,000-£17,000 per house by turning the loft space in its four and five bedroom houses into living space.

“The customer gets an extra 25% floor space for about 10% on the price”.
Source: Ian Randall – Southern Area Managing Director, Laing Homes. Building Homes. December 1996.

The Kingspan TEK Building System is ideally suited to creating useable room-in-roof space due to its ability to create the maximum unobstructed area. Room-in-roof construction is becoming ever more popular. People are driven to this concept by various forces including:

• the demands of PPG3 / Bacon recommendations reducing footprint size thus forcing builders to build up or down to put floor area into houses; and
  
  
• to fully utilise all of the potential for space that a building has, to allow for extra space for a home office, guest rooms, children’s play rooms etc. as lifestyles change, or simply a warm storage area in the roof.

Kingspan TEK Structural Insulated Roof Panels are manufactured up to 7.45m long and with the use of intermediate purlins any size of roof can be constructed with the Kingspan TEK Building System.

The Kingspan TEK Building System eliminates the need for expensive attic trusses or trussed rafters which can be time consuming, difficult to erect and costly to insulate.

For a full discussion of the benefits of room-in-roof construction please refer to the Kingspan Insulation publication “Pitched Roofing and the use of Rafter Level Insulation” available from the numbers shown in the Contact Us section.

FLOOR SPACE

The Kingspan TEK wall to achieve a U-value of 0.18 W/m²K can be as little as 194.5mm thick. In comparison a full fill masonry cavity wall to achieve the same U-value will have to have a wall 405 mm thick (180 mm rock wool full fill / 100 mm dense block / 12.5 mm plasterboard on dabs). A timber frame wall to achieve the same U-value will have to have a wall 448mm thick (breather membrane / 12 mm OSB / 270 mm glass fibre quilt between 270 mm studs / 12.5 mm vapour check plasterboard on dabs).

This means that the Kingspan TEK Building System gives you more floor space for the same external dimensions. Ideal when considering compliance with the housing densities demanded by PPG3 / Bacon recommendations.

With the Kingspan Building System in the example shown below you achieve 14.15m² more useable floor space in comparison with a house built with masonry full fill cavity walls and achieve 16.95m² more useable floor space in comparison with a house built with timber frame walls of the same external dimensions and U-value (0.18 W/m²K)