The e4 principles

Clay block filled with soil and plants

Clay building materials - always a good choice

The e4 principles explain, why building the entire house with clay building materials is always a good choice!


Building a house with clay building materials means to build with a clear conscience. Why? Because clay blocks, bricks, roof tiles and pavers are made of a natural raw material that is available in almost unlimited quantities and extracted carefully with the greatest possible concern to the environment. Also: Clay products are mainly sourced regionally, resulting in more local jobs and less transport. That makes them particularly environmentally friendly and sustainable.


Building a house with clay building materials means to make a reasonable investment. Why? Because modern clay masonry is a proven and well known building technique combined with innovative products and installation methods that help to reduce the material input and working hours. Every type of house can be built with clay building materials at a reasonable price and by a fixed date. And: Brick houses have a very long lifespan of more than 150 years and are nearly maintenance free. This helps to keep operating costs low.


Building a house with clay building materials means to reduce climate change. Why? Because highest energy efficiency is possible with clay building materials! Due to their very good heat storage capacity together with excellent insulation properties they help to reduce total energy demand and CO2 emissions. Together with an innovative heating system a brick house minimizes the energy consumption and meets the strict nearly zero energy standards defined by the European Union that will take effect in 2020.

Emotion & Health

Building a house with clay building materials means to create a high comfort of living. Why? Because a brick (clay block) house is healthy, comfortable, safe and beautiful:
A brick house is healthy because clay building materials don´t emit any pollutants into the indoor air. They are able to absorb humidity when the air in the room is damp and release it quickly when the air is dry. This prevents moisture in the building structure and thus also bacteria, spores and moulds as well as rottenness.

A brick house is

  • comfortable because clay building materials regulate the temperature naturally. They have excellent insulation properties together with a high heat storage capacity, therefore they help to keep the rooms warm in winter and cool in summer.
  • is safe because clay building materials are fire-resistant and protect the inhabitants from fire.
  • beautiful because it has a unique and warm appearance. Especially visible clay products like facing bricks and roof tiles contribute to the character of a building due to their wide range of formats, shapes and colours. Clay building materials are perfectly suited to realise any kind of architectural style, from classic to contemporary to very modern, so that everyone can build one´s own house according to very personal needs and dreams.


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