A new Dry Fix Standard for UK roofing has been launched, which comes into immediate effect.
BS 8612: Dry-fixed Ridge, Hip and Verge Systems for Slating and Tiling sets minimum performance requirements for dry fix products for the first time, following concerns about the durability and weather tightness of some systems.
Richard Bishop, Wienerberger Category Marketing Manager for Roof comments “Wienerberger welcome the changes that BS 8612 bring to the market; although not law, it will help ensure an improved standard of products used in roof specifications. It is essential that specifiers state a compliance to the British Standard or risk a sub-standard product being used.
“For the first time BS 8612 sets minimum requirements for dry fix products in a market driven by legislation and guidelines. The use of dry fix products has been increasing as a result and has seen many ‘cost-engineered systems’ enter the market.
“It is essential that we, in the supply chain, work together to ensure compliant systems are used. In short, by working together and complying to both BS 5534 and BS 8612, we will improve the standard of pitched roofing in the UK, meaning each project is delivered to the highest quality. If anyone in the industry has any questions, our technical team is available to help.”
Roof systems manufacturer, Marley Eternit has also welcomed BS 8612, and expects the Standard will encourage the elimination of inadequate dry fix products from the market.
Stuart Nicholson, roof systems specialist at Marley Eternit, explains: “Since the introduction of the revised BS 5534, there has been a significant shift in the market towards the use of dry fix systems. However, the popularity of the products means that there has been a huge increase in the amount of systems available.
“While they may look broadly similar, the quality and performance of the components used can vary significantly, with some systems engineered to bring the cost down.
“The introduction of BS 8612 should improve consistency and reduce the amount of inferior systems on the market, but as it is not a legal requirement, specifiers need to make sure the supply chain is using compliant products on their projects. Therefore, even if they don’t name a specific manufacturer, specifiers should state that the required dry fix systems must meet BS 8612 or BBA requirements. This will protect the security of the roof, as well as their liability in the event of any future claim.”
BS 8612 covers dry fixed ridge and hip systems connected to timber ridge / hip battens, ridge boards or hip rafters and dry-fixed verge systems, which are installed with slating and tiling.
Stuart adds: “As the standard of pitched roofing comes under increasing scrutiny, one of the best ways to ensure compliance with both BS 5534 and BS 8612, is to specify a full roof system from a trusted manufacturer. This also helps to maintain greater control of the supply chain, protecting the original specification and reducing the risk of product substitution further down the line.
BS 8612 also introduces new guidance on dry verge fixing. Dry verge products can no longer be installed with just a nail fixing into the end grain of the batten. Instead, mechanical engagement must be on the faces of the batten.