7.9 Module B – other aspects not related to a single life cycle stage. Written by Anh-Migrate on 21. October 2012. Posted in Construction products. 7.9 Module B – other aspects not related to a single life cycle stage. B-11 Distinction between Modules B2, B3, B4 and B5 B-12 Robustness of data (LCA, service life) to model the life cycle of a building product Lifecycle stage: B (all modules) Previous Next