The documents of the Fabbriceria show how difficult it was to obtain the materials for the construction of the chapels. The almost total absence of local building materials obliged the Fabbriceria to buy stones from quarries located at some distance from Ossuccio.
In the 17th century, the best means of transport were waterways: boat transport was the simplest and safest, as well as the cheapest. Sand, stone, clay and sometimes baked bricks arrived from the lake. The material was then transported to the building site on the backs of mules or other animals. Specialised workers such as stonemasons and bricklayers were employed in the construction of the chapels, as well as servants, women and girls, who helped to transport the materials from the shore to the building site.