Interview: Michela Palazzo talked about of the past restoration of Sala delle Asse

Piero Baglioni, Director of CSGI discussed with the staff of OPD and CNR-ICVBC on how to pursue the diagnostic investigations on the monochrome


Interview: Restoration expert Maria Rosa Lanfranchi talks about the difference between fresco-secco painting and true fresco

Interview: Who is Maria Rosa Lanfranchi?

Restoration expert Pinin Brambilla Barcilon, famous for having restored, among other artworks, Leonardo’s Last Supper, visits the worksite in the Sala delle Asse

Investigations in Hypercolorimetric Multispectral Imaging by Profilocolore Srl continue to identify the materials used in the monochrome


Interview: Claudio Salsi talks about the ‘actors’ in the restoration of the Sala delle Asse

A small group of instagramers (IgersMilano) visits the working site: here are some shoots. Photographs by Marco Lamberto

Jill Pederson from Arcadia University of Philadelphia observes the monochrome

The CNR-ICVBC identifies substances present on certain portions of the monochrome, using a portable X fluorescence spectrometer

Enlargements of the painted surface are studied through the a digital microscope camera placed on the wall

Architect Gianfranco Pertot of Politecnico di Milano illustrates the architecture of the Sala delle Asse from outside


Interview: Restoration expert Alberto Felici talks about the scaffolding in the working site

Tests for removing soluble salts from the walls are in progress

Meeting with the scaffolding experts: they need to plan how to make the Sala delle Asse accessible during Expo 2015

The technical committee meets to discuss the results of cleaning tests on the monochrome


JULY 2014

Interview: Restoration expert Fabrizio Bandini talks about the “descialbo” of mural painting

Cleaning tests are performed on the monochrome

More cleaning tests on the intrados of the eastern window

The technical committee meets to discuss the results of the latest analyses on the monochrome

The Regional Direction of Lombardy and the Opificio delle Pietre Dure of Florence report to the Milanese superintendents about the latest work progress

JUNE 2014

Interview: Restoration expert Paola Ilaria Mariotti talks about the investigations performed by OPD in 2006 and about the danger of salts to mural painting

A few samples are taken from the monochrome

A moment of reflection on the results of the restoration

Giorgio Bonsanti, former superintendent to Opificio delle Pietre Dure, visits the site

Larry Keith, Director of Conservation at the National Gallery of London, steps on the scaffolds to examine the vaulted ceiling

MAY 2014

Interview: Elisabetta Rosina explains why infrared thermography has been used in the restoration

Interview: Elisabetta Rosina explains what is beneath the monochrome

Interview: Elisabetta Rosina explains what happened during the restoration of the 1950s

Interview: Elisabetta Rosina talks about the microclimatic factors operative in the Sala delle Asse

The thermographic analysis continues in different bands on the monochrome, carried out by Claudia Daffara of the University of Verona

Claudia Daffara positions the IR lamps and thermal imaging camera

Marcello Melis of Profilocolore Srl shows the early results of the diagnostic studies in Hypercolorimetric Multispectral Imaging

The staff of Hoc-Lab editing the video of the interviews with the restorers

APRIL 2014

Interview: Annette Keller – high-definition multispectral campaigns

Interview: Francesca Tasso explains the decoration in the Sala delle Asse in light of the new discoveries

Diagnostic investigations in Hypercolorimetric Multispectral Imaging (HMI) by Profilocolore Srl on the monochrome walls

Thanks to the HMI analysis of Profilocolore Srl it is possible to distinguish and classify the various substances used in the artworks

The staff of Culturanuova srl installs Modus Operandi® software on the computer of the Sala delle Asse, for elaboration of all the restoration data

April 7, 2014: meeting of the scientific committee for the Sala delle Asse

The scientific committee climbs on the scaffolds for the first time

The restoration works on the monochrome continue

Annette Keller performs a new photographic campaign in infrared and reflexed ultraviolet

Special Wood lamps flood the surface of the monochrome with ultraviolet light

MARCH 2014

Meeting between the Director of restoration works and CNR-ICVBC (National Research Council)

CNR-ICVBC draws superficial samples from the intrados of the east window

The samples will be analysed in a laboratory in order to identify the salts on the surface

The presence of salts is confirmed also on the surface of the preparatory sketch

Restoration experts prepare materials that will be used for testing the extraction of soluble salts

The purpose of absorbing compresses is to extract salts from the surface of the east window’s intrados

Compresses with different compositions are placed on position; they will be removed at different times

Monitoring the saline content of areas treated with compresses enables restoration experts to test the effectiveness of the materials used

Sala delle Asse is present at the Restoration Salon in Ferrara in 2014

The exhibit booth was created by the General Director of Valorisation for the MiBACT

The screen of Culturanuova s.r.l. in the booth of Mibact offers a virtual visit to the Sala delle Asse

OPD describes restoration work in the Sala delle Asse during one of the talks at the Salon


The restoration workshop is equipped with all the necessary chemicals

And even some domestic appliances!

The height of the scaffold will allow investigating the vaulted ceiling and the lunette

Restoration of the preparatory sketch begins

Director Claudio Salsi talks with the restoration experts

Together with the preparatory sketch, samples of cleaning are performed on the intradossi (jambs) of the two large windows

The School of High Formation of the Opificio delle Pietre Dure of Florence visits the site

Paola Ilaria Mariotti, who teaches at the School, is also one of four restoration experts for the Sala delle Asse


Politecnico di Milano performs psychrometric measurements in order to collect data on temperature and relative humidity

CNR-ICVBC acquires chemical data on the materials of the preparatory sketch through Raman Spectroscopy

The ventilation system is essential in order to maintain adequate environmental conditions for the restoration experts

The Raman spectroscope is moved on to the lunettes

The Raman technique is performed using different tools

Scaffolding changes are made: each floor is equipped with a hydraulic system

and with lighting, making it easier to work