PILKINGTON SOLVES THE PART L VERSUS AESTHETICS DILEMMA

04 March 2005
The introduction of the new Part L Building Regulations has been placing great demands on the building façade designer who wants to create beautiful structures but, at the same time, has to comply with the new Part L criteria. Until now this has caused problems but, with the introduction of Pilkington Planar™ Triple from Pilkington Architectural, blending aesthetics and energy efficiency is no longer a problem.
The introduction of the new Part L Building Regulations has been placing great demands on the building façade designer who wants to create beautiful structures but, at the same time, has to comply with the new Part L criteria. Until now this has caused problems but, with the introduction of Pilkington Planar™ Triple from Pilkington Architectural, blending aesthetics and energy efficiency is no longer a problem.


Pilkington Planar™ Triple is the world's first triple glazed frameless glass system. It offers greatly improved thermal insulation with a U value as low as 0.8W/m2K. It also offers the added benefit of noise control or solar performance as a wide range of glass types can be incorporated into its three layers. Pilkington Planar™ Triple does not compromise on quality and the system offers the same excellent transparency and design flexibility as traditional Pilkington Planar™.

Specifiers and end users alike will welcome the new system. For specifiers particularly, the changes to te Part L have caused more than a few headaches. The insulation values that must now be attained for glass façades are not easily achieved with framed glazing and, for the commercial building sector, the design dilemmas are even greater.

Design trends have led to a greater demand for transparency in the building envelope but the high level of structural performance required by the majority of such buildings means that the façade is usually a metal curtain wall that has high heat transfer through the metal framing members. For example, take a high performance glass product with a central U value of 1.1W/m2K (HP argon filled double glazing). When the insulation value is measured in the framed condition, the U value can increase to 2.3W/m2 or more, dependent on the style and type of thermal breaks used in the curtain wall.

By using a point supported frameless system, such as Pilkington Planar™, the conductive paths through the metal components are reduced and a much more effective insulation performance is achieved. The low U values offered by Pilkington Planar™ Triple, combined with the thermal efficiency of the frameless point supported design, provides insulation values for the transparent areas of the building envelope that would be difficult, if not impossible, to achieve with a conventional framed design approach.

Pilkington Planar™ Triple represents Pilkington Architectural's constant drive to develop and improve high performance products and systems that ensure compliance with Building Regulations, enable aesthetic demands to be met and make specification and installation far easier.