New Shading Technique Revealed through Reconstructing the Sgraffito Technology used North of the Alps during the Renaissance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25110%2F17%3A39915868" target="_blank" >RIV/00216275:25110/17:39915868 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/19:00503753

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

New Shading Technique Revealed through Reconstructing the Sgraffito Technology used North of the Alps during the Renaissance

Original language description

Research focusing on the 16th century original Renaissance sgraffito techniques has been in progress since 2012. It aims to specify the techniques utilized by sgraffito makers and to provide an evidence for the process by scientific methods. Primarily, the research concentrates on the area of South Bohemia. Non-invasive visual observation and documentation under the raking light illumination formed the basis of the investigation, complemented with laboratory material analysis. Based on the investigation, some characteristic features of Renaissance sgraffito were identified in the surveyed area and it led to a description of two specific methods of shading – coloured with a brush and smoothened by a trowel, so-called ‘trowel shading’. Both techniques work with middle grey tones and this visually interconnects sgraffito with monochromatic chiaroscuro painting. Detailed analysis carried out on two selected shaded sgraffiti from towns of Telč and Slavonice characterised the used raw materials, mixing ratios, and character and thickness of individual layers. Based on the analysis, local sources of materials were identified and subsequently, material copies were prepared with the aid of knowledge concerning historic lime production and processing technologies. The replicated mortar mixtures were evaluated on trial panels (workability, application methods, various surface finishes, setting and hardening, duration of time breaks between individual layers and/or scratching). The practical trials proved the connection between properties of the used materials (that predefined the use of the artistic technique including the ‘trowel shading’) and the final appearance of sgraffito decorations. Materials and technological copies facilitated a reconstruction of the Renaissance sgraffito technique originally used in the surveyed region and the newly gained knowledge and skills were subsequently used to restore a sgraffito façade in Slavonice.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

60401 - Arts, Art history

Project

<a href="/en/project/DG16P02H012" target="_blank" >DG16P02H012: Lime materials for restoration and conservation of authentic elements of historic structures</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Sgraffito in Change : Materials, Techniques, Topics, and Preservation

ISBN

978-3-7319-0802-9

ISSN

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e-ISSN

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Number of pages

14

Pages from-to

124-137

Publisher name

Michael Imhof Verlag

Place of publication

Petersberg

Event location

Hildesheim

Event date

Nov 2, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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