Jury Presentation Plaster

Jury Presentation Plaster

Country: Hungary BPB-Company: Rigips Hungary Ltd. Contracting Company: Laki Plc. - 1 -

Site: Palace of Arts Building Owner: Ministry of theNational CulturalHeritage Architect: Zoboki, Demeter and Company Ltd. - 2 -

Contracting Company: Laki Plc. Principal respresentative: Mr. Péter Laki Name of the person attending the Trophy Gala-Event: Mr. Péter Laki Mr. Péter Laki - 3 -

Short Description of the Contracting Company: • 1984 Foundation • 1987 Open the first exhibition room • 1990 Establish the first plant • New plant, enlargment of the Building Sculpture division • Establish Drylining division • 1996 Establish Stone and Leaden Glass Division • New exhibition rooms in 3 major cities • 2001 Foundation of the Laki Plc. • 2003 Foundation of the Laki GmbH. , open a new exhibition room in Vienna. References: Cultural Institutes ( Library, Pázmány Péter Catholic University) Shopping Malls Theatres (Comedy Theatre of Budapest, National Theatre) Office Buildings Banks (Budapest Bank, Hungarian Commercial Bank) Hotels (Grand Hotel Royal, Le Meridien, Intercontinental) Residential houses - 4 -

National Concert Hall In the designing and building of the National Concert Hall, the most important aim was to establish perfect acoustic performance, which can compete with the world’s leading Concert Halls. Hence the designers of the building commissed a very famous american company, Artec and its director, Russel Johnson to design all acoustic elements in the Concert Hall. The capacity of the Concert Hall is 1700 persons. The acoustic of the Hall is variable: this is served by the huge canopy which hangs above the auditorium, by the resonate cells, and last but not least by the coloured gypsum reliefs made by György Jovánovics, which are not only designed for the eyes, but mainly for the ears. - 5 -

The gypsum reliefs were designed by the famous artist and was completed by Laki Plc. These reliefs decorates the first, second and third floor. The more than 1000 sqms artistic gypsum work is entirely hand made creation. For this artwork more than 35 tons of gypsum and a lot of paint were used. For this work ALC Modellgipsz were used thanks to its whitness and high level quality. Coloured reliefs on the wall during work - 6 -

Flat relief Plastic relief • For the perfection of the acoustic effects, the perfectly processed and well tried structure of Russel Johnson, the famous American acoustic expert were used: • On 10 cm concrete surface paste 2 cm gypsum relief. • Two types of gypsum reliefs were used: • Flat relief: plain surface, texturised • Plastic relief: 1, 2, 3, 4 or 5 cm thick gypsum panels decorate the plane surface with different shapes. • Every piece of the relief had to be approved by the acoustic expert before production. He defined the thickness and the shapes of the small reliefs, but he had no influence concerning the colours. - 7 -

After the acoustic expert approved every single design, the whole structure were made in the studio as a draft from polystyrene. When all these procedures were ready, and the final approval were given, exact copies were made from silicon. Plan of a plastic relief In the first phase when all the reliefs were previously designed, they adverted not only on the big reliefs, but also precisely the acoustical elements, like the smaller panels and their thickness on the reliefs. Draft made from polystyrene in the studio - 8 -

After the approval of all the design elements, the artist could create the stunning colour impact of the whole surface. He used 6 pure colours and 6 mixed colours for the perfect impact. The gypsum used for the reliefs were coloured. It was important both for aesthetic purposes and durability. When colouring the gypsum, first they mixed the water and pigment, and dipped it for 5-8 hours so that the gypsum gets steady coloured. The precisely experimented water-pigment-gypsum ratio was essential to be kept. Colour design Coloured plastic relief - 9 -

You may think that we arrived now to the production phase: We have the design, the colour, the silicon ….. But, we still need a very precise logistic process to be able to keep the strict deadline. Before the transportation, in the productuion site they had to produce and put in order all the reliefs to fasten the application. Size of a relief: Width: 80 cms High: 100 cms Weight: approx 24-26 kgs Previously the size of the relief was 60x60 cms, as the application would have been much more easier. But from acoustics point of view the bigger the reliefs are the better. Why not to apply bigger reliefs? But how…… Size draft in the studio -10 -

Reliefs were fixed to the surface with double security: • - with glue • with two metal lugs (infused into the gypsum) • On fixing with the glue, the whole surface had to be pasted, as from the acoustic aspects the air gaps would have caused resonance. • On the other hand to secure the application onto the walls of the very heavy gypsum reliefs, they were fixed with two metal lugs, which were previously infused into the gypsum. National Concert Hall - fixing the reliefs - 11 -

Flat and cancellated forms Cancellated, flat and creased forms For the perfect acoustic effects the creased forms are the most adequate. Than comes the cancellated designs, and the least supportive forms for the acoustics are the flat ones. The gypsum surface worths more than 160 000 EUR. Flat and creased forms - 12 -

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Jury Presentation Plaster