ZEMCH 2015 - International Conference Proceedings | Page 342

The connection proposed creates a decoupling between the panels and the width of the walls no longer influence the boards’ dimensional modulation (Figure 5). Figure 5: Connections at intersecting partitions An important point was the configuration of panels with openings, as they require the cutout of the sheathing and finishing boards. This cutoff must occur to prevent the union of consecutive boards in coincidence with the vertices of an opening, in order to maintain the wall panel rigidity (FREITAS, 2012). In this case, the boards must be cut in the shape of a “C” (window) or “L” (door). Furthermore, a minimum displacement of 15 centimetres between the OSB sheets and the cementitious boards are necessary in the panels’ composition. These boards must have mismatched joints to provide the rigidity of the panels (LPBrasil, 2011). However, a modulation problem is created by the displacement, as the difference of at least 15 centimetres can be variable and is deducted or added to cementitious boards. This difference does not follow the modulation of 60 and 120 centimetres defined in the product design, which results in the cutout and the waste of boards (Figure 6). 340 ZEMCH 2015 | International Conference | Bari - Lecce, Italy