After speaking to various customers and installers over the last year or so, it has become apparent that there is a need for advice around how to properly ventilate cladding.
Our Technical Manager, Dave Osborne has recently given his thoughts on this, with a step by step guide and some useful hints and tips along the way:
Before we start, I would like to highlight the key difference between white and colour/foil installations, particularly given the development of darker colours (Anthracite Grey, for example) as an increasingly popular choice within the marketplace. Our white cladding is more forgiving but if you don’t follow the exact guides for colour/foil installations then you will encounter problems. We do, however, recommend that you follow these guidelines for both white and colour/foil to ensure that you get the best possible installations.
For all installations, preparation is key! New projects require sound substrate, good quality battens (suitable treated timber), insulation (if required) and a vapour membrane. Replacement of existing cladding requires removal of the old material, checked and repaired substrate to ensure sound location for battens, good quality battens, insulation and vapour membrane, as for new projects.
Below is my step by step guide for both white and colour/foil installations:
Dave Osborne is the Technical Manager for Cellular PVC cladding specialists Swish Building Products. For more detailed guidance, we also recommend readers to refer to the Swish Design and Specification Guide and to the Plastics Industry Code of Practice, available from The British Plastics Federation.
If you have any questions for Dave or the team, please use the following contact details to get in touch: https://www.swishbp.co.uk/index.php/talk-us/contact-us/