The schedule for the restoration work had to be strictly adhered to, so a great deal of importance was given to choosing the products used. Fast-setting properties, ease of application, plus the ability to withstand Québec’s harsh winter weather conditions were key selection criteria.
Mapei products were used to address a number of repair issues during the restoration of the Jardin de Chine at the Montréal Botanical Garden. As each challenge arose, the restorers turned to their Mapei representatives, who provided solutions for reconstructing areas of the roofs and garden walls, repairing and setting terracotta tiles on the roofs and providing a protective coating with ELASTOCOLOR COAT.
In detail: the roofs of the buildings were rebuilt by applying a one-inch coat of PLANITOP 12 SR fibre-reinforced mortar, which is resistant to tensile loads and abrasion, directly on the metal sheeting of the roofs. The terracotta tiles imported directly from China were installed over the surface made from PLANITOP 12 SR using MAPECEM 202 rapid-setting cementitious mortar. MAPECEM 202 was the ideal solution due to the thickness needed to secure the curved tiles in place. The jutting gutters around the roofs, typical of Chinese architecture, were installed in some of the areas of the roofs with MAPECEM 202, while in other areas GRANIRAPID SYSTEM was used. Every border tile was installed with GRANIRAPID System in order to accelerate the installation of the ajdacent roof tiles. The artisans needed a product that would provide a firm bond with an extremely quick set capability, and GRANIRAPID was the best solution.
The roof tiles needed to be repainted because quite a number of them were damaged when they arrived from China. Mapei Technical Services proposed using ELASTOCOLOR COAT, a high-yield acrylic coating product used to decorate and protect surfaces. This product is available in a vast range of standard colours and a limitless number of tailor-made shades. It forms a waterproof film that provides excellent resistance to environmental conditions over the years. The use of ELASTOCOLOR COAT as the finish for the roof received the seal of approval from both the client and the Chinese artisans.
The walls surrounding buildings, temples and cities are very important features of typical Chinese landscapes because they offer protection and cover from the outside. The walls surrounding the Jardin de Chine needed to be restored and protected against the elements. To restore the wall to its original white colour, it was recommended to use the pastel tint base of ELASTOCOLOR PAINT, an acrylic-based paint which is waterproof and impermeable to aggressive agents present in the surrounding air.
The surface of the wall and its decorative oval features are similar to those seen on the Great Wall of China.
The damaged areas were removed and then repaired with PLANITOP XS fibre-reinforced mortar, which is resistant to compressive and flexural loads, while the decorative features were bonded to the surface using MAPECEM 202. All these products are distributed on the Canadian market by Mapei Inc.
The City of Montreal and Chinese artisans who carried out the work were highly satisfied with the end result and highly praised the quality and reliability of the Mapei products recommended for the work.
For further information see www.mapei.ca