It is necessary to create micro ventilation between the coat and the roof (intrados).
1-tile module.
It has a grille to stop leaves, birds and sleet.
It has been designed in order to exalt the features of roof insulating materials.
It guarantees a solid roof structure.
It is healthy during season changing and doesn't suffer from sudden changes of temperature.
To have good results, it is recommended to use an aerator for 15-20 square meters.
They must be laid in the following way:
starting from the third row on the eaves line
on the third last row on the ridge line
it is necessary to stagger the first and the second row.
In the case of 8 ml or more pitches, it is necessary a third central row.
It is easy to lay it in the place of a tile.