Södra, one of the UK’s foremost suppliers of sustainable timber, has diversified its range of flame retardant treated timber products available to the UK market, with its C260 and C260 Xterior. For centuries, timber has been used in countless construction products, both indoors and outdoors, but today’s rigorous fire
Södra, one of the UK’s foremost suppliers of sustainable timber, has launched a landmark immersive experience that transports viewers to its world-leading Swedish forestry operation. Using the latest 360ᴼ video technology, Södra’s video takes users to the forest – just a small section in its network totalling over two million
Published late last year, the report by the All-Party Parliamentary Group for the Timber Industries, How the timber industries can help solve the housing crisis, was encouraging, but now is the time to take real action, says Jeremy English, Director at Södra Wood Ltd, STA board member and previous chairman
Good forest management can both protect the environment and help meet the growing demand for timber from the building trade, argues Nigel Buckley-Ryan, Södra’s UK Sales Director, Merchants. As pressure on the world’s finite resources continues to intensify, timber suppliers face a growing problem: how do we meet the needs
A recent industry survey conducted by Södra Wood has shown a definite increase in the specification of timber as a construction material in the UK, with 63% of respondents saying they believe timber is growing in popularity. The survey (hosted through Building and Building Design magazines) generated insight from almost
BDC 319 : Aug 2024
Södra, one of the UK’s foremost suppliers of sustainable timber, has diversified its range of flame retardant treated timber products available to the UK market, with its C260 and C260 Xterior. For centuries, timber has been used in countless construction products, both indoors and outdoors, but today’s rigorous fire protection requirements run the risk of limiting creative expression. This is the view of Lars Broström, Sales Manager for Special Products at Södra, who believes that Södra’s new C260 and C260 Xterior products offer a much-needed solution to this problem. Lars further comments: “Whether you’re an architect, developer or contractor, Södra’s C260 and C260 Xterior timber makes meeting fire safety regulations straightforward.” Södra’s C260 and C260 Xterior are treated in Sweden by Woodsafe, one of Scandinavia’s leading companies in flame retardant treated timber products. The name C260 is a reference to the ignition temperature of wood. Both products are CE-certified in accordance with EN 14915: 2013 and Construction Products Regulation (EU) 305: 2011. When using C260 Xterior, there are no requirements for surface treatments, creating optimal conditions for timber’s natural ageing process. “For C260, the flame retardant treatment chemical is applied using a high-pressure vacuum process,” explains Lars. “When this fluid is exposed to fire it releases carbon dioxide, which suffocates flames much like a fire extinguisher. This is what makes C260 the best choice for both safety and aesthetics. What’s more, C260 Xterior also requires very little maintenance.” C260 Xterior provides the same level of flame retardant protection as C260, but the timber is given an additional weatherproofing according to EN16755, making it ideal for outdoor use without any further treatments. The flame retardant treatment fluid is embedded into timber fibres at a cellular level, so it can’t be washed away by rain or harsh weather conditions. “The C260 Xterior flame retardant treatment can be applied to a wide range of different timber types without the need to apply topcoat,” continues Lars. “Now you can use timbers such as cedar, larch or heat-treated pine to build flame retardant protected structures while preserving the natural grain of the timber.” Both C260 and C260 Xterior can be used for a wide range of applications; a benefit Lars describes as offering “freedom to be creative with your building projects.” Applications include: Cladding for walls and ceilings Sound-absorbing cladding Arenas and sports facilities Lecture halls and auditoriums Music venues and concert halls It can also be applied to a number of attractive timber types, such as Western Red Cedar, heat-treated timber and larch. Södra’s flame retardant treated timber panels can be painted in any solid colour, remaining compliant with fire regulations for: façade cladding, decorative elements, roofs and walls, balconies, and construction work, as long as it meets reaction to fire properties. For UK customers interested in our flame retardant timber products treated with C260 and C260 Xterior, visit https://www.sodra.com/en-gb/gb/building-systems/components/facades/ or contact Lars Broström, lars.brostrom@sodra.com, +46(0)7258 18228 or Elin Bäckfalk, elin.backfalk@sodra.com, +46(0)7258 34644. Our production and sales managers are based in Sweden.
Södra, one of the UK’s foremost suppliers of sustainable timber, has launched a landmark immersive experience that transports viewers to its world-leading Swedish forestry operation. Using the latest 360ᴼ video technology, Södra’s video takes users to the forest – just a small section in its network totalling over two million acres – and the ‘Södra neighbourhood’. The virtual reality neighbourhood offers a glimpse of how wood-based products can facilitate a more sustainable way of life. In the forest, users can meet a forest inspector and a family of forest-owners. Södra is run by more than 42,000 forest owners in southern Sweden – many of whom have inherited forests passed on through several generations. As well as narration at each stage, users are able to click, drag and control their own perspective for a truly immersive experience. As they look around, knowledge bubbles appear, allowing users to view information, videos and fun facts relevant to what they’re seeing. For those in the UK’s timber and merchants’ industries this video offers a unique chance to discover the potential of wood-based products and experience Södra’s Swedish operation as close to first-hand as possible, without getting on a plane. Södra Sales Director, Nigel Buckley-Ryan, explains the motivation behind the experience: “We wanted to bring to life wood’s almost endless number of uses. Of course, we’re confident that high-quality, sustainable timber will continue to transform the UK construction industry in the coming years. But some of the perhaps less-obvious by-products of wood as a raw material are fascinating – from biomethanol and tall oil, both renewable fuels, to lyocell and viscose for textiles for clothing, bed linen and soft furnishings (to name just a few).” Nigel continues: “We’re incredibly proud of our Swedish operation and passionate about how sustainably-managed forests can facilitate a truly sustainable future. This video allows us to share this passion with our UK audience – some of whom may not have been aware of the possibilities wood can offer or ever had the opportunity to see what a world-leading forestry operation looks like. People can now experience that from the comfort of their own homes.” Södra’s immersive 360ᴼ experience is available to view at www.sodraexperience.com For more information, visit www.sodra.com/en-gb/gb/
Published late last year, the report by the All-Party Parliamentary Group for the Timber Industries, How the timber industries can help solve the housing crisis, was encouraging, but now is the time to take real action, says Jeremy English, Director at Södra Wood Ltd, STA board member and previous chairman of the Truss Rafter Association. Södra Wood Ltd is one of the UK’s leading suppliers of sustainable structural timber and engineered wood products. The inconvenient truth The facts are by now well-known. The Government needs to build 300,000 new homes in England per year while achieving zero carbon emissions by 2050. Construction 2025, a joint government and industry strategy, has also outlined targets for the UK construction sector, including halving construction-related emissions and project delivery times, and reducing construction costs by a third, by 2025. These are all ambitious goals and ones that put the industry – in its current state – in a difficult predicament given its reliance on concrete, “the most destructive material on Earth,” according to The Guardian last year. The solution: timber In stark contrast, according to the APPG’s report, if 270,000 of these new homes were to be built by the timber industry, three million tonnes of carbon dioxide would be absorbed and stored each year and build times would be 30 per cent quicker. The report goes on to argue that using timber in construction is central to meeting emissions targets and urges the government to implement the recommendations of the Climate Change Committee by increasing the use of timber in construction. Sustainability credentials aside, the human cost of the housing crisis absolutely cannot be ignored. As the report notes, “the housing crisis in the UK has a fundamental and negative effect on our quality of life. A lack of affordable housing is consistently linked to poverty, poor mental and physical health.” Timber can and should undoubtedly play a central role in solving this profound problem. Success in creating a flourishing housing industry, and in turn, a flourishing timber industry, would be felt right across the country. So, what action can be taken? Embrace offsite timber frame construction Throughout the 1950s and 1960s the UK building industry moved towards industrialised forms of building, and in the early ‘80s prefabricated housing became dominated by timber frame systems. Timber framed dwellings steadily grew to around 30 per cent of the new build market until negative media coverage and the public’s continued general suspicion of modern construction methods contributed to a significant downturn in production. Until recently, this stigma has remained, although in Scotland, incidentally, where timber frame was and still is well-respected, production was hardly affected at all and to this day timber frame accounts for 75 per cent of all new houses in Scotland. Shifting mentalities Quite rightly, we’re now seeing a shift in mentality throughout the rest of the UK, especially given timber frame’s ability to facilitate affordable homes. It’s a method that combines speed, quality and efficiency; all of which contribute to affordable, low carbon, efficient homes. Today’s offsite timber frame homes – thanks largely to technological advances – are also high-quality. Offsite construction’s controlled approach to planning and constructing buildings significantly minimises any room for error, and gives opportunity for new eco-friendly process planning, designing and installing within a much-reduced time frame and budget. The factory setting allows better quality control of materials, chain production setups and easier implementation of processes and manufacturing methods. Research published by WRAP also demonstrates that the use of timber frame construction components can reduce the amount of waste generated on site by up to 40 per cent. Currently, timber frame construction accounts for just 15 per cent of UK housing output, according to the NHBC. Benefits outlined above, coupled with the fact that government housing targets simply cannot be met through traditional methods alone, makes me confident that this figure will increase exponentially in the years to come. The government’s ban on combustible materials No current conversation about timber is complete without comment on the government’s catch-all ban on combustible materials. At the end of 2018, as part of fire safety improvement measures intended to prevent another tragic blaze like that seen at Grenfell Tower, the then Housing Secretary, James Brokenshire, introduced new legislation banning combustible materials on new high-rise homes above 18m. The government is now considering lowering the height threshold for combustible materials to “at least 11m,” according to current Housing Secretary, Robert Jenrick. Architects, builders and suppliers of timber and engineered timber products are now looking at what the future holds for mass timber builds following this catch-all ban and, in particular, the specification and use of cross-laminated timber (CLT) as a strong, lightweight structural component for multi-floor structures. While there’s no question that these restrictions are intended to enhance occupant safety, we mustn’t lose sight of CLT’s inherent benefits; benefits that have made it an increasingly popular choice for structural components since its introduction into the UK in 2004. It’s easy to transport and modify, it minimises noise pollution on site and it’s highly cost-efficient to produce and use. Structural timber and CLT products also have very predictable charring rates. When exposed to fire, the load-bearing core of a beam or truss will remain intact while the char layer remains to protect it. The char forms an insulation layer preventing an excessive rise in temperature within the unburnt core. The core continues to function, providing a predictable period of fire resistance. I’ll conclude with a quote from Andrew Waugh of Waugh Thisleton Architects, one of the UK’s leading proponents of timber construction: “The reality is the evidence says we’ve got 12 years left to sort out climate change – we’ve got to start changing the way we do things. And we’ve got to keep pushing the message about the safety of CLT. It’s not only quicker to put up; it’s safer, healthier, lighter and locks away carbon.” Presently, the Structural Timber Association, amongst others, is currently augmenting its already extensive
Good forest management can both protect the environment and help meet the growing demand for timber from the building trade, argues Nigel Buckley-Ryan, Södra’s UK Sales Director, Merchants. As pressure on the world’s finite resources continues to intensify, timber suppliers face a growing problem: how do we meet the needs of consumers and protect our planet at the same time? In my view, good forest management is the main way to address these apparently conflicting needs. Some may think that trees simply grow on their own and that forests therefore don’t need to be carefully managed. However, innovative and responsible forest management can make a significant difference, both to the environment and to the quality and supply of timber. So, what should good forest management look like? Nurturing healthy saplings As you would expect, it starts at the beginning with the careful selection of the seedlings that, over the next 50-70 years, will grow to maturity, create your forest, and provide the reliable supply of timber on which your customers depend. At Södra, for example, the basis of our Falkenburg nursery (where 35 million saplings passed through last year) derives from some of the best quality trees in the world. The programme does not and has never used genetic modification in any way, but rather helps ensure that all desirable traits of these selected spruce are transferred to the seeds, and then to future trees. This helps produce higher quality trees and ultimately improves the overall quality of the end-product. Encouraging good root growth Saplings themselves should be planted in conditions that will ensure strong, healthy root growth. One way of doing this is to line the pots in which they are grown with copper. This prevents roots from spiralling downwards in a corkscrew shape. Instead, the roots spread out to the edges of the pot. This trait continues when they are finally planted in the forest, which makes them less susceptible to storm damage. Before this stage, once saplings reach a height of about 15cms, they should be trimmed and generally well looked after. Errant branches should be cut off to create a nice straight sapling, maximising its chances of growing into a strong, healthy tree. As they grow, saplings will continue to need careful nurturing to keep them healthy and pest-free. However, this shouldn’t mean resorting to chemicals. At Södra, for instance, we have developed our own chemical-free pest deterrent called Cambiguard. Healthy forests lead to quality timber supply Health forests mean health trees that grow for longer, benefiting the environment as they do by absorbing and locking away harmful carbon dioxide. And typically, longer growth results in bigger, stronger, better quality trees which, in turn, means higher yields of quality timber. Once saplings are ready to be planted out, good forest management involves planting them in a location that will offer sufficient light, water and nutrients for continued healthy growth. Responsible forest owners measure water tables regularly and make sure they have a good, up-to-date understanding of what their forest actually consists of. Modern technology can help here. For example, many of today’s foresters now use drones to view the forest. Amongst other things, this enables them to identify which areas need to be thinned and which areas will work well left as nature strips. The role of thinning and nature strips Thinning is an essential element of good forest management and consists of removing slower-growing or defective trees, so providing more space and sunlight for the remaining trees. The subsequent improved supply of soil nutrients, water and light results in bigger, healthier trees. Nature strips also play an important role in forest husbandry. These are areas of forest left untouched so that wildlife can flourish, which helps maintain a balanced forest ecosystem and contribute to the overall health of the forest. Conservation and increased production can go hand in hand In my view, a long-term, evidence-based approach is critical to successful forest management. At Södra our systematic approach over the last 20 years has led to both an increase in voluntarily protected areas with high conservation values and greater production. Over the next five years we’re going a step further and aiming to use our ongoing research and development to achieve a 20 per cent higher annual rate of forest growth while still meeting our sustainability targets. This ambition demonstrates that conservation and improved productivity can go hand-in-hand. Indeed, many forest owners find that, in time, less invasive forestry methods lead to forests with better growth and increased wood volume. This translates into the reliable supply that is so important for builders’ merchants and other timber buyers, particularly in the current climate of uncertainty around the outcome of Brexit. Care with harvesting As they mature, trees will continue to need monitoring to make sure they are still receiving an adequate supply of water, light and soil nutrients. Generally, it takes around 50-70 years for a tree to fully mature and reach its full height, and only once a tree has stopped absorbing harmful carbon dioxide (and locked it away forever), will it be harvested. As with the earlier stages of a tree’s life, good forest management can minimise negative environmental impacts at the harvesting stage. For example, it is important to protect the forest floor and reduce soil damage by constructing temporary roadways and laying down branches. It is also important to identify important habitats that should be preserved. The end results By managing forests in the careful, responsible way I have outlined forest owners can make a significant difference to the environment and, at the same time, provide a reliable supply of the sustainable and quality timber that’s increasingly in demand to meet today’s construction needs.
A recent industry survey conducted by Södra Wood has shown a definite increase in the specification of timber as a construction material in the UK, with 63% of respondents saying they believe timber is growing in popularity. The survey (hosted through Building and Building Design magazines) generated insight from almost 350 architects, consultants, contractors and merchants. The objective was to ascertain whether the UK is beginning to recognise the merits of timber and the results were clear to see: 69% of those questioned said they already worked with timber 68.75% of respondents felt that timber can help meet government housebuilding and sustainability targets When asked to rank the benefits of timber in order of importance, sustainability took the lead, followed by the fact that it is a quick and efficient material to work with. Great aesthetics took third place, then versatility, cost-effectiveness and offsite capabilities. Nigel Buckley-Ryan, Sales Director, Merchants, at Södra Wood, commented: “As a timber business, we have been working hard to position the benefits of what wood can do for our construction industry – it’s really rewarding to see so many people working with timber. We believe it can help meet many sustainability and housing targets in the UK, so I’m delighted to see recognition of that. “Sustainability is something that we are very passionate about here at Södra, which is why for every tree we fell, we plant another three and operate according to a tree’s natural lifecycle. It is welcoming to see that the UK construction industry is becoming more conscious of timber’s excellent sustainability credentials.” Jeremy English, Sales Director, Manufacturing, at Södra Wood commented: “While timber’s popularity is clearly growing, there remains lots of opportunity for further development, especially in terms of timber’s offsite capabilities, and cost and time efficiencies. The interesting thing about this survey is that it also shows that work still remains to be done to raise awareness around timber’s benefits. We’ll certainly continue to build its case and, as always, endeavour to drive the industry forward.” For further information about Södra Wood please visit www.sodra.uk
