The Green Line 

Products that are prepared for unmixed recycling because they are either purely mineral, recyclable and/or biodegradable.

Products that contribute to the avoidance of packaging material through the use of unmixed packaging. Among other things, we sell loose goods instead of goods in bags.

Refers to the absence of pollutants in the air and the general indoor climate in living spaces. Has a direct influence on the health and well-being of residents. We have a large number of our products tested and certified by independent institutes: Read more here.

Cement, quicklime and gypsum are the largest CO₂-emitters in our products. Two processes are responsible for this: the heating of the rotary kiln in which the cement clinker is produced and chemical processes in the deacidification of limestone. Our initial efforts to reduce the CO2 footprint are bearing fruit: we rate CO₂-reduced binders, e.g. cement-reduced or cement-free binders, which reduce CO₂ emissions during production, positively. These include products with SECON® binder technology.

Products in which secondary raw materials are used as a substitute or partial substitute for primary raw materials, e.g. concrete recyclate as an aggregate instead of sand and gravel from primary extraction in quarries

We rate products that contain raw materials that are not irretrievably eliminated through their use, such as wood, straw, hemp and clay, positively. In particular, our construction chemical products, which contain polyols made from vegetable oils and not conventionally from mineral oil. 

It is more sustainable to maintain a building by renovating it rather than demolishing it and building a new one. What is harmful is the gray energy, the primary energy required for new construction: This is the energy required to obtain materials, to manufacture and process components, to transport people, machines, components and materials, to install components in the building and to dispose of them. We rate products that protect buildings from demolition, whether through refurbishment or protection during new construction, positively.

Products that use less material per m² contribute to lower CO₂ emissions as they are more productive. They also require fewer freight trips or lighter loads.

Products that have a lasting effect when installed, for example by helping to reduce energy consumption. This applies to insulation materials, but also to thermal insulation plasters. However, our criterion goes one step further and includes the deconstructability of the ETIC system - without a clear concept, we do not include the ETIC system in the Green Line.