IBU.data is a data base, pro­vid­ed by Insti­tut Bauen und Umwelt e.V., con­tain­ing the LCA-based data from the Envi­ron­men­tal Prod­uct Dec­la­ra­tions (EPDs) by man­u­fac­tur­ers of build­ing mate­ri­als, dig­i­talised in XML for­mat, and made avail­able to the pub­lic. This makes it pos­si­ble to apply it when cal­cu­lat­ing build­ing LCAs.