Reducing Operational Carbon with Exceptional Air Tightness

The air tightness of a building is quantified in terms of its air permeability, which is defined as the volume flow rate of air per square metre of building envelope and floor area at a given pressure.

Approved Document L2:2010 specifies a maximum permissible air permeability of ≤5m³/hr/m² at a pressure of 50Pa, which improves on the previous requirement of ≤10m³/hr/m². Eurobond panels achieved a pass with all levels less than <1m³/hr/m².

The air tightness of a building is key to the requirements of Building Regulation Approved Document L2 2010 and is becoming more significant to architects and designers who want to increase the thermal performance throughout the life of the building while not having to increase insulation thickness and thereby incur additional material costs and thicker wall construction.

It is accepted that creating an air-tight building envelope offers greater benefits that just using more insulation, it can help a building be more energy efficient and as our steel faced composite panels are inherently airtight they are perfectly suited for this purpose.

This test pass ensures that Eurobond panel systems not only comply with Approved Document L2 but are significantly better than the required standard. They can make a significant contribution to lowering building energy consumption and reduce operational carbon in line with the carbon reduction commitments now demanded across all building types and sectors.


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