|Roof Cover Guide - Design and Construction of FCR/MCR Roof Covering: Principles, Detailing (SKAT, 1993, 74 p.)|
Wind creates a suction force on tiles with the tendency to dislocate them or even to blow them off.
(Also see , Toolkit Element 24: Roof Structure Guide)
Especially exposed to wind suction are all roof edges, ridges, eaves and verges. Open roofs, large overhangs, veranda covers, open shed roofs etc. are also exposed.
In these exposed areas (B), very careful fixing is required, for example with additional hooks or double nib fixing.
In less exposed areas (A) fixing with a single nib with one wire loop is sufficient. In less important buildings in areas which are not storm-prone, wire loop fixing may be omitted. This, however, applies only in the case where there is no ceiling and readjusting of displaced tiles is therefore easily possible from underneath. In this case, however, the tiles have to be laid with great care and the under-structure has to be even, so that the surface is smooth and the wind cannot easily find a grip.
Methods of fixing see Chapter 6.1, 6.5, 6.6.
Methods of fixing