This project aims to create a space protected from the rain in the
Church of San Pedro in Viana. The Dome of said church no longer exists, which
means that the rain, wind and sun come in from the top. A protected space is
achieved under the dome by the installation of the 2-layer ETFE cushion, where
events such as the “Prince of Viana” 2019 prize-giving ceremony can be held.
The substructure is a polygonal ring beam of 12 equal sides
(dodecagon), 1.615 m per side; said substructure holds the aluminium (also a
polygon of 12 equal sides) upon which the perimeter of the cushion of 2 layers
of inflated ETFE is fixed.
The membrane chosen is transparent ETFE of 250 microns.
The metal structure is built out of tubular profiles with joints
bolted on site. The ETFE is transparent
to allow the passage of light while guaranteeing the watertightness of the
unit. A cable mesh has also been added to strengthen the membrane at the
bottom.
