One of the Chelsea Flower Show’s top exhibits used products from plaster and plasterboard manufacturer Knauf Drywall to win a Silver-Gilt Medal.
The dramatic pavilion modelled upon the circular trullo houses found in Puglia, Italy and featured a steel-framed structure capped with a stacked drystone roof, with a rendered external wall. The radius of the pavilion was extremely tight – just 1.5m internally and 2.0m externally – and only Knauf Drywall’s Aquapanel Exterior was sufficiently pliable to cope.
“We have been very impressed with how malleable the board proved to be because we were worried that there would be cracks because of the extreme curvature imposed by the tight radius,” said Mark Gregory, managing director of Landform Consultants, the contractors constructing the garden.
Offering all the benefits of a dry panel system with the strength of brick and block, Knauf Aquapanel Exterior is a robust, non-combustible building panel made of aggregated Portland cement with coated glass fibre mesh embedded in back and front surfaces to provide a trouble-free surface that is the ideal key for render. It resists water with no swelling or loss of stability, is weatherproof and is unaffected by the freeze-thaw cycle. The board requires no special tools or processes for installation – simply score and snap – and can be curved to a tight radius.
The MonoFLex TXF Flexible system recommended by Monocouche Render Systems and also used in the Chelsea design, was developed to be applied directly to render specific boards such as Knauf Aquapanel Exterior. When applied in insulated, timber and metal framed scenarios the system brings with it great flexibility and improved thermal insulation throughout the life cycle of any building.