Tips for laying
The first row of roofing tiles, close to the eave, must protrude about 7-8 cm and be increased in a value equivalent to the thickness of a bent tile or pantile. Smaller protrusions might cause water to flow back, while bigger protrusions might cause rain water to overflow from the eave. A 7-8 cm protrusion (a third of the eave diameter) is ideal for eaves with 20-25 cm diameter. Close to the eave, it is advisable to waterproof the underlayment pitch by 80-100 cm. In order to guarantee a firm and waterproof securing of roofing tiles on battens or other fixed supports, use only screws with gasket (or nail + silicon) or specific hooks supplied by the manufacturer. To enhance the colour rendering of the roof covering, it is advisable to take products from several pallets at the same time.