(See diagram 5 – test model) .During these tests, the system's aeroacousticbehaviour was also tested as well as its behaviour in hail storms. The acoustic measurements showed that the effect of wind on the SHAMAL system does not generate noise within the range of standard windspeeds (v<50km/h). The SHAMAL system was not damaged following a violent hail storm (fall of ice particles at 65 km/h for 7 min). All these results are mentioned in a report drawn up by the NANTES CSTB (EN-CAPE 04-078 C – V0) and are available from Terreal on request. PERFORMANCE TESTS (CSTB NANTES May 2004) Sunscreens are particular facing elements. These products can be fitted in different ways with respect to a building (offset relative to a facade, in front of a bay building window, in a corner, over a terrace,…). They also provide a certain porosity with respect to the wind. This can generate turbulence phenomena. To assess the effects of the wind on the Shamal system, a test run was performed in May 2004 at Jules Verne wind building tunnel at Nantes CSTB. These tests were performed with a scale 1 model. The CSTB wind tunnel can simulate winds at speeds varying from 0 to 250 km/h (hurricane). The results of these experiments showed that the SHAMAL system can withstand winds of 244 km/h without any particular damage, under the worst possible conditions (no wall or façade behind the sunscreens).
TEST MODEL Diagram 5 L'hay les Roses Town Hall, FranceArchitects: Pierre et François Lombard architectes > All the terracotta façade solutions
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