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General comment Modules A1 is based on inventory of RTS EPD 124_21 over its modules A1 to A3. All the raw material transportation in A2
is inventoried. In module A3, all used materials, energy, packages and transportation until the end-of-waste state have
been included. In module A4, transportation distance to the customer is with partially empty return. All inventories are
based on ERP data from the mills. Possible unit processes of direct flows do not exceed 1% cut-off in amount or expected
impacts. In module A5, only machine work needed for assembly of the wall structure is inventoried, no other construction resources are included. Necessary fitting materials and sealings included in A5. A scenario for the module B
is not presented in this EPD. In a scenario for the module C it is assumed that the de-constructed structure will be
directed partly for reuse in module D, incinerated for energy and treated as waste. Metal parts are transported to
recycling but considered recycled without burden. Module D considers the net benefits of using laminated logs in energy
recovery and reusing material in a new building.
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