The structural intermediate layer DuPont SentryGlas Plus makes it possible to create a totally contemporary Chapel
A new scenario for the most important services of the Protestant Church of the Diaconesses has been created. The sisters wanted to put the project of the chapel in the 21st century and thus "offer to people modern interior that combined beauty, intimacy and celebration, inviting them to meditate and find peace".
To replace the structure of carp that worked previously as a chapel and already showing considerable wear after 20 years of use, the French architect Marc Rolinet devised a light structure, composed of two structures in wood and glass, adapted to the irregular topography of the land and creating access to two levels. A wooden shell upside down is the modern oblong Chapel, built with overlapping pine beams, which are curvaron one to one with steam in the workplace. This Chapel of organic form curls up into a large structure of glass triangular base, protected from sunlight through a horizontal roof also made with wooden beams. The passage between the Chapel and the transparent enclosure invites to meditation and offers a close Union with the Park of tall trees that surround them. This structure bioclimatic filtered and fully leverages the natural light of the Sun by the 360 degrees.
The DuPont SentryGlas Plus structural intermediate layer is used in laminated glass security for both sides of the façade and roof. The fixation for the large panels of glass devices go directly integrated in the interior of the vertical panels laminated glass layer. This attractive pricing system was made possible by the middleware that adds resistance and provides a more secure framework for this application on a large scale.
DuPont SentryGlas Plus
The Ethereal and transparent character of the building was achieved through the use of the structural intermediate layer DuPont SentryGlas Plus in the two façades and roof safety laminated glass. "I realized immediately of how useful would this material and insisted from the outset in their jobs," explains Marc Rolinet. The work developed out in advance the maximum benefit of the mechanical properties of this structural intermediate layer. "Structural calculations, executed by DuPont in collaboration with the Austrian delegation of Saint-Gobain Glass, allowed us reduce the thickness of the glass, increase the inclination and lighten the structure of support".
In this project, DuPont clearly demonstrated the advantages of SentryGlas Plus in comparison to the material normally used the polivinilbutiral (PVB). The intermediate layer SentryGlas Plus offers a deformation three times less than the security PVB laminated glass and produces half of inherent pressure within the layers of glass with the same thickness of glass (glass intermediate layer). "Only the resistance to deformation of SentryGlas Plus made possible the manufacture of long trapezoidal panels on the roof (2.2 meters long)", says Bjorn Sanden, Division Glass Laminating Solutions from DuPont de Nemours France.
The French architect Marc Rolinet devised a lightweight structure consisting of two parts in wood and glass: a wooden shell upside down is a modern oblong Chapel, collected within a large structure of glass and protected from sunlight through a horizontal roofalso made with wooden beams.
This election also had a positive effect on the total cost of construction, to provide the same mechanical resistance and acristalar the same proportions without the structural intermediate layer DuPont SentryGlas Plus would have needed a thicker glass. This would have meant a series of extra costs in glazing and structural elements, since they would have had to bear a greater burden. The architectural advantage is also look, given that this solution provides optimal sizes of glazing without the need of a support structure.
The horizontal panels of the roof were built with insulating glass units composed of an outer layer made of tempered safety glass of 10 mm in thickness, which provides better insulation against heat, acting as a shield. Inside there is a laminated safety glass made of laminated tempered glass 12 mm, an intermediate layer structural SentryGlas Plus 1.52 mm and 8 mm tempered glass Internal and external layers are separated by a 12 mm air Chamber The glazing of façades has an outer layer of laminated glass for safety with two panels of tempered glass 8 mm separated by the intermediate layer of 1.52 mm SentryGlas Plus. The inner layer consists of 10 mm tempered safety glass. Both layers are separated by a layer of air 16 mm
The fixations were directly integrated in the inner layer of the vertical panels laminated glass. This attractive pricing system was made possible by the middleware that adds resistance and provides a more secure framework for this application on a large scale.
Apart from this inherent resistance, the liners offer better stability of the edges and excellent optical properties. Open edges sheets are immune to the discoloration and delamination of the songs. In addition, SentryGlas Plus improves the security and the resistance of the Assembly. Thanks to its resistance post-rotura, which is greater that that of the PVB, layer intermediate maintains the sheets of glass in place yet still made shatter.
Another advantage in terms of appearance and maintenance of the horizontal surfaces of the Chapel is that middle layer SentryGlas Plus significantly reduce the deformation of the laminated glass due to its greater resistance to the flow and pressure. This was especially clear when the glass is exposed to high temperatures and solar radiation. The roof has no curved surfaces, low deformation prevents formation of deposits of dirt because of rain.
The architect also deals with the excellent optical effects of the material. "This material is much more attractive than conventional laminated glass." The planimetry of glass combined with DuPont SentryGlas Plus gives the façade a mirror effect. "Transparency is maintained over time, as shown in many architectural applications of DuPont SentryGlas Plus since the mid-1990s".
La Chapelle des Diaconesses of Marc Rolinet won the special jury prize at the 3rd Edition of the Lauriers of Bois Construction in April 2008. Nominees for this national architectural competition, projects and structures, which focuses on wood construction, were shown during the fair of construction wood Salon européen du bois et de l'habitat durable, held in Grenoble Isère, France, from 3 to April 6, 2008.
