The first step is to fix a sarking membrane
on the rafters. This is necessary as a temporary weather protection during the construction phase and later to derive drift snow or rain, which is blown under the roof by storms. To be able to transport any moisture the membrane must be ventilated
. Laths fixed on the rafters ensure the necessary ventilation shaft. On these counter-battens
are fixed. The distance between these laths
depends on the type of tile, as well as on the length of the roof. The last step in creating your roof is the roof covering itself. The tiles are fixed by screws or storm cramps on the prepared laths
in accordance with the rules for storm safety.