PALAZZO VALLI-BRUNI

COMO

Renovation of external façades

The building, adjacent to the church of San Provino, is of the medieval period, but was extensively restructured in 1600 by the patrician Somigliana family of Como.
A building that for two centuries remained as a private home, until the mid 18th century, when the last heir, a man of the Church, left the entire property to the Curia.
In 1820, the Church designated architect Melchiorre Nosetti to manage the renovation in neoclassic style to transform the building into multiple residential units to be used by the Clergy. From the beginning of the 1900s, the apartments were let to families of Como, and only recently has the entire building been freed-up to allow a new renovation to return it to its antique splendour.
It is currently the headquarters of the Accademia Giuditta Pasta.

ACTIVITY:

Decorative cement – eaves, string courses, window surrounds with capitals and ground floor mouldings.
Restoration works through sandblasting and water jet cleaning: cleaning of surfaces with an appropriate sandblasting system through a product called GMA GARNET (completely natural mineral abrasive, chemically inert and free of any toxic metal, silicon or ferrite) with low pressure portable machines.
This system, used to clean the most delicate surfaces, does not affect the support and prepares the surfaces for the subsequent finishing treatment. Successively the water jet
cleaning phase was performed, using atomised pressurised water (from 50 to 200 atm), to then apply the specific conservation product.

Façades

  • Painting with a first consolidating base coat, potassium silicate-based liquid in compliance with regulation DIN18363 for the dilution of silicate colours
  • Painting with 1 coat of filler paint with 0.5 mm granulometry inert mineral filler for the liquid potassium silicate-base coat
  • Painting of first coat (GLAZING) with liquid potassium silicate-based exterior paint in compliance with regulation VOB/C DIN 18363
  • Painting of second coat (GLAZING) with liquid potassium silicate-based exterior paint in compliance with regulation VOB/C DIN 18363

REQUIREMENT – condition of the building:

The eaves, window surrounds and mouldings in decorative cement on the ground floor present a deteriorated state characterised by the presence of various types of stains while the rustic stucco façades are damaged by the passage of time, erosion by atmospheric agents and by the structural modifications performed during the various renovations.

SOLUTION:

After inspection and viewing of the state of the surfaces requiring repair, an intervention of renovation of the external façades with lime stucco and a cycle of silicate finishing (glazing) was established.

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