Title: Listeskrue 3,5x45.pdf
The screws may be used for connections in load bearing timber structures with structural members according to an associated ETA, if according to the ETA of the structural member a connection in load bearing timber structures with screws according to an ETA is allowed.Furthermore, the screws with diameters between 6 mm and 12 mm may also be used for the fixing of insulation on top of rafters or at vertical facades.Friction forces shall not be considered for the design of the characteristic axial withdrawal capacity of the screws.A minimum of two screws should be used for connections in load bearing timber structures.The anchorage of wind suction forces as well as the bending stresses of the battens or the boards, respectively, shall be considered in design. Additional screws perpendicular to the grain of the rafter (angle  = 90°) may be arranged if necessary.Screws for the anchorage of rafter insulation shall be arranged according to Annex B.