Our Building Materials and Insulation Divisions make us one of the leading international solution providers for ecological and sustainable construction. Our products make an important contribution to the construction of energy-efficient, high-quality buildings and thus to the protection of the environment and the conservation of resources. They have received numerous awards and certificates in recognition of their environmentally friendly characteristics. We aim to make our products even better every day.
We want to make an active contribution to climate protection and have set ourselves ambitious targets to this end: Firstly, to reduce our own CO2 emission intensity by 30% by 2030 and, secondly, to help reduce the energy requirements of buildings through our construction and insulation materials. We are focusing on the use of energy-efficient technologies such as photovoltaics, LED lighting solutions and combined heat and power. More about our measures. More about our measures
Circular economy means that our products are reused for as long as possible in order to protect natural resources and avoid waste. Functioning circulation models exist for all Xella products. Xella uses three circulation models to return AAC residues to the production cycle: these are residues that arise directly in production; cuttings from the construction site which are collected in “Big Bags” on site, picked up and returned to the factory; and AAC residues from demolition projects, which can be reused after an intensive recycling process.
Ytong autoclaved aerated concrete can be processed on the construction site with relatively little waste. All residues are today collected directly on the construction site in what we call “Big Bags”. It is important that the material residues are sorted according to type and not contaminated with waste such as foils or building rubble. The Big Bags, weighing up to 500 kg, are made available on a pallet, picked up and transported back to the respective plant, where they are further processed into AAC granulate or returned to the production cycle as fine flour.
Recycling of building materials
Xella’s aim is to recover as much autoclaved aerated concrete as possible also from demolition projects via a recycling process, thus enabling an almost infinite circular economy. Since 2015, Xella Technologie- und Forschungsgesellschaft has therefore cooperated with Otto Dörner to find out how and in what quantities AAC residues from demolition projects or mixed construction waste can be reused for the production of new autoclaved aerated concrete. In this way, natural resources and habitats can be preserved.
Homogeneous autoclaved aerated concrete residues can be processed into granules and reused as cat litter. For over 30 years, the Xella Group has been supporting trading companies in the implementation of their own trade brands as developers, manufacturers and marketers of cat litter products.
Cradle to Cradle
To fulfill our responsibility for the environment we will be forced to bring our actions into line with the lifecycle principle of the natural environment around us over the long term. The solution is innovative and intelligent product design in which all of the materials used circulate within technical and biological cycles – from cradle to cradle. It is in Xella’s economic and ecological interest to recycle as many of the raw materials used as possible. Our objective is for each of our brands to offer at least one product that meets the cradle-to-cradle criteria.
Research and development (Xella T&F)
Xella stands for innovative, forward-looking products, solutions and brands. This calls for high quality and ability to innovate – because if you want to give the right answers to tomorrow’s construction challenges, you have to ask yourself the right questions today. This is the reason why Xella operates its own technology and research company T&F at two locations near Berlin, where we work on innovative solutions for our customers and address the requirements of modern, efficient and sustainable construction.
We strive for sustainability in all our products and processes. The lighting at the production sites is the most effective lever in terms of energy efficiency. This is why we are gradually converting our German plants to LED technology.
Digital planning saves resources
Optimizing materials, cutting costs and conserving resources – these are the main advantages of digital planning using BIM. Before the first bricks are laid and the first wall elements installed, Xella thoroughly examines construction projects in a digital model to optimize them in such a way that resources are saved and actual requirements met. This approach not only avoids collisions at a later stage of the construction process, but also optimizes the building shell according to technical requirements. This saves time, money and waste. In numerous reference projects, we have achieved cost savings of up to 20 percent and time savings of up to 30 percent.
The ability to innovate is in our DNA. Almost 90 years ago, Axel Eriksson carried out laboratory tests to develop the autoclaved aerated concrete that has given our company worldwide visibility as the partner for forward-looking innovative solutions. We take great pride in this development and have given it a clear identity in the form of Xella ID. Xella ID is synonymous with our DNA, our ability to innovate and a strong innovation management system based on a cross-border, cross-departmental network that promotes internal and external cooperation.