Refurbishment and Restore Issue 19 2020 | Page 66

Constructing a healthy environment for the future Within 30 years, it’s estimated that the UK’s current housing stock will make up 80% of the entire nation’s supply . With this in mind, it’s crucial as an industry, we change the way we build, prioritising health to provide a sustainable environment for future generations. A healthy building is one which focuses on enhancing the health of its environment and its occupants. Healthy buildings are often constructed using natural and sustainable materials. The benefits of healthy building Currently, our buildings account for around 40% of our global energy use and 35% of resources . These numbers can be significantly lessened if the entire construction industry works together to prioritise healthy building materials, processes and techniques. the same pollutants as their synthetic alternatives. Any toxins present in the air will also be filtered by natural materials. 2. Improved energy efficiency Natural materials offer higher thermal efficiency which remains constant, even while absorbing and releasing moisture from the building’s internal environment. This results in a warmer internal environment, reducing the need for artificial heat. As healthy buildings are also designed to maximise natural light – which helps to improve productivity, focus and regulate sleep cycles – the reliance on artificial light is less. As a result of this reduced reliance on excess energy, within homes and workplaces, healthy buildings also act to reduce carbon emissions. 1. Higher indoor air quality 3. Carbon storage properties Natural materials are highly breathable and vapour-permeable, meaning they facilitate the air-exchange between our internal and external environments. This breathability allows water to escape a building’s fabric, preventing the build-up of condensation and mould. Natural materials – in particular woodfibre – have the potential for carbon capture and storage (CSS). Wood sequesters carbon during its lifetime, pulling CO2 from the atmosphere and storing it in its mass. The stored carbon will only be re-released into the atmosphere when the wood comes to the end of its life – ie through burning or decomposition. Using reclaimed or recycled wood products can prolong the effects of wood’s carbon embodiment properties. Levels of toxic fumes within a building can also be reduced through the use of natural materials because they do not release 66 - www.refurbandrestore.co.uk 4. Increased sustainability Additionally, natural materials are sustainable, as they don’t deplete natural resources and can be used without adversely impacting the environment. Regulating health Currently, there is no legal requirement in UK Building Regulations which sets out minimum standards for indoor air quality, breathability, or other factors which enhance the health of building occupants. There are optional standards you can adhere to, such as the WELL Building Standard, which outline the key factors you should consider when building with health in mind, but nothing is compulsory as yet. Securing healthy homes Protecting our environment and securing a healthy planet for future generations are not the only advantages of healthy building. A planet laden with healthy buildings will have reduced carbon emissions, cleaner air and – most crucially – a healthier and happier population. Are you interested in learning more about the healthy building? Sign up to Steico’s healthy building newsletter at www.steico.com/en/news/campaign/.