Intesa San Paolo Tower – Turin

The challenge at the root of this realization is to design and implement an original roof garden from a very common canvas for contemporary construction:

a patch of land under 200 sq. m.

area located above the basement of the garage, on the ground floor of a newly constructed building

Little land, a narrow corridor-like side, a bustle of plants to complicate matters.

The client fully embraces the landscape design idea of giving a soul to the future garden, which has as its strong points a small pond and bridge, a large tree in the center of the design, and a wide variety of herbaceous and shrubby essences on the side: peonies, roses, lagerstroemia, hydrangea, ornamental sages, cornus, anemones, osmanthus, viburnums, and penstemon.

All the plants have one definite feature in common: flowering, strictly white.

To achieve the result, a Harpo mixed-type green roof system is chosen with a substrate depth of more than 50 cm in some places.

Why did the design rely on Harpo?

By using a UNI 11235-compliant system, the designer knows he has the information to optimize his design, and the gardener knows he is entrusting the expected result of the landscape design to the certainty of the system’s performance.

In all this, the TerraMediterranean substrate plays a very important role.

The mineral substrates that Harpo produces have very high performance. This makes it possible, among many other benefits, to contain thicknesses, which are much less than those of a natural soil, the performance of which, by the way, cannot be known.

The design and production of a substrate for green roofs requires great expertise, a lot of work and a long time of experimentation. The use of a natural soil, albeit of hypothetical good quality, does not make any performance value or consistency of characteristics available.