Perrault's Colonnade divided into five parts, is a typical solution of French classicism. The simple character of the ground floor basement sets off the paired Corinthian columns, modeled strictly according to Vitruvius, against a shadowed void, with pavilions at the ends. This idea of coupled columns on a high podium goes back as far as Bramante. Those rhythmical columns form a shadowed colonnade with a central pedimented triumphal arch entrance raised on a high, rather defensive base. Crowned by an uncompromising Italian balustrade along its distinctly non-French flat roof, the whole ensemble represents a ground-breaking departure in French architecture. Perrault (1613–1688) won
Architectural terracotta of surface problems. When it rains, water and salts get sucked into the voids in and around the terracotta through capillary action. If it freezes then ice forms, putting internal stress on the material, causing it to crack from inside. A similar problem happens with atmospheric pollutants that are carried into the gaps by rains water. The pollution creates a mildly acidic solution that eats at the clay body or a salt crust forms, causing similar issues as ice. Architectural terracotta Architectural terracotta refers to a fired mixture of clay and water that can be used in a non-structural, semi-structural,