Three LCA Categories for EPDs
Cradle to Gate, Cradle to Gate with Options and Cradle to Grave are the three categories of Life Cycle Assessment. This is the basis of an EPD as indicated by environmental standard EN 15804.
Each LCA category in the checklist below relates to the five life cycle stages of a building. The numbering A-D refers to the modules given in the standard.
Business to business (B2B) EPDs for wood products are generally limited to specific stages of the life cycle, such as cradle-to-gate, since manufacturers may not be able to characterise how their product will be used after it is sold.
Cradle to gate
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Cradle to gate with options
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Cradle to grave
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Notes:1 Quantity of a construction product for use as a reference unit in an EPD for an environmental declaration based on one or more information modules e.g. mass (tonne), area (m2), length (m), volume (m3), item (piece). 2 Quantified performance of a product system for use as a reference unit. |