3. Lightweight prefabrication

The study of joint sealing in lightweight prefabrication covers a wide variety of joint types. Here, we present just a few examples. For more detailed information, please refer to specialized literature (cf. ).

Generally speaking, the SNJF's professional rules and DTU 44-1 specify the sealants suitable for light prefabrication and the corresponding dimensions. These documents only deal with expansion joints less than 30 mm wide (table 2 ). The professional rules also specify that flashing joints ( [C 3 660], figure 8) are currently permitted, provided that an elastomeric sealant is used, the joint base is flat, and the minimum recommended dimensions are respected.