Natural materials in housing construction in view of the current requirements of technical conditions - the content of Primary Energy Input

Radosław Barek,Tomasz Mielczyński,L Lichołai,P Miąsik,B Dębska,J Szyszka,J Krasoń,A Szalacha

doi:10.1051/e3sconf/20184900003

Radosław Barek, Tomasz Mielczyński + Show 6 more

Open Access

https://doi.org/10.1051/e3sconf/20184900003

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Abstract

The article presents the reasons for using natural materials in former and contemporary housing construction. The possibilities of shaping contemporary housing architecture with the use of natural (unprocessed or low-processed) building materials in the light of the requirements of the Technical Conditions that should be met by buildings are discussed. The article discusses the results of calculating the U-value for different types of building partitions and the influence of the construction of the partition on the EU index and the cumulative value of Primary Energy Input in a given type of partition.

Highlights

Knowledge about technological conditions among architects, constructors and investors is limited by the lack of systemic education in this area
In the common opinion there are many myths and simplifications related to the use of natural building / insulation materials in construction
The authors note the need for a reliable, systematic approach to the topic

Summary

Natural building materials – attempt to define

Natural materials originating from local sources have recently become the subject of special interest in the last period (20 years). Natural materials were used in housing construction always in connection with locally available raw material. Rammed Earth Technology , ground tamped in the formwork "rammed earth"), the filler material structure (eg.: Construction of the lock, wattle and daub) and the insulating material in combination with the vegetable material most often the fiber ( straw, heather, etc.) and layered structures of the walls (timber frame*- patch-clamping wooden structure with an inner layer of coarse clay plaster - about 8 cm). Organic materials (straw, heather, etc.) fulfilled the role of insulation materials or supporting structures as micro-reinforcement. The problem of using natural materials is both the quality and parameters of the obtained material (clay - bed, straw - humidity, etc.) as well as the parameters of resistance: to biological corrosion, erosion under the influence of weather conditions, fire resistance. Natural materials (MN) show the superiority of parameters (e.g. interior microclimate), these parameters are not considered when compared with other materials (e.g. certified) with a high degree of processing

Natural materials confectioned

Acquiring local material

Description of the test methodology

Summary and conclusions