What is an EPD?

An Environmental Product Declaration is a document that details the environmental performance of a product over its lifetime. EPDs support the drive to reduce embodied carbon in the built environment by providing the basis for comparing entire building solutions so the most sustainable option can be selected. EPDs are independently verified and follow standardised methodology.

H+H EPDs

The EPDs for our products are whole life cycle, or ‘cradle-to-grave’ EPDs to give a full transparent picture of their environmental impact. They have been produced in accordance with EN 15804+A2 and ISO 14025 / ISO 21930.

Download our EPDs here:

PDF FILES

EPD H+H Celcon Vertical Wall Panels.pdf
EPD H+H Celcon Standard Grade Products 2024.pdf
Download Here

Comparing EPDS

EPDs can prove useful for comparing the carbon impact of different products however, it pays to take great care over the figures used. The comparison of products is defined by the contribution they make to the environmental performance of a building, therefore the complete lifecycle must be considered. Areas to pay close attention to include:

  • Declared unit

    This won’t necessarily be the same measurement for all products. H+H EPDs are based on one cubic metre of aircrete.

  • Global Warming Potential (GWP) Total figure

    This figure should report the whole life carbon emissions, or cradle-to-grave (A1-C4) for the product. The H+H EPD reports the whole life figure. For a true comparison, review which A1-C4 fields have been completed. For example, are the impacts of transport and installation (A4-A5) recorded?

    If only cradle-to-gate or ‘up front’ figures (A1-A3) are included in the GWP Total figure this does not reflect the whole life cycle of the product. Note also that where an ‘up front’ figure (A1-A3) has been given, the RICS Whole Life Carbon Assessment (WLCA) for the Built Environment requires that any biogenic carbon is totally excluded. 
     

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  • Comparing products for structural walls

    There are two points to note here. First, to make a true comparison between two products the calculation must be made based on the amount of the product to be used. Second, the choice of material used will dictate what other materials are needed to complete the wall structure. The impact of those other materials must also be included in total embodied carbon figures. Calculating the environmental impact of aircrete walls is simple since there is only one material to consider.