Abstract

This paper is the research output of the laboratory ageing of external thermal insulation composite systems (ETICS). This was carried out in order to study the changes in properties of systems consisting of combustible and non-combustible thermal insulation materials, and four different types of finishing renders. Four types of the widely used, thin-layer facade rendering systems were subjected to hydrothermal cycles in a climate chamber in conformity with ETAG 004 guidelines. Analysis of the physical and mechanical properties (i.e., variation of temperature, water absorption, bond strength and mechanical resistance) of four types of ETICS are presented. This study indicates that there are no visible defects on any renderings over the junctions between polystyrene foam (EPS) and mineral wool (MW) materials when applied in ETICS.

Highlights

  • One of the most effective methods to improve energy efficiency in new and renovated buildings is the use of insulation cladding applied directly on façades in the form of external thermal insulation composite systems (ETICS)

  • The rig for testing was made by use of the thermal insulation material EPS 70, 0.14 m width and mineral wool 0.14 m width as fire barriers

  • The above mentioned ETICS are deemed to be resistant to hydrothermal cycles

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Summary

Introduction

One of the most effective methods to improve energy efficiency in new and renovated buildings is the use of insulation cladding applied directly on façades in the form of external thermal insulation composite systems (ETICS). Mineral wool is used in the case of performing a thermal insulation system on high buildings, in places where external walls are secured on the border of fire zones, or if there is significant moisture in the insulated wall This often results in the need for two types of insulation, Proceedings 2020, 51, 16; doi:10.3390/proceedings2020051016 www.mdpi.com/journal/proceedings. In order to prevent fast fire spread, different provisions can be made, including barriers of noncombustible material, such as mineral wool around the openings and horizontal isolation barriers around the buildings between different floors [4,7,9] The idea behind this solution is to increase the fire safety of insulation systems using EPS. The aim of this research work is to reproduce the hydrothermal behavior in laboratory conditions, in accordance with ETAG 004 [19], and assess the effect of different thermal insulation types on the whole hydrothermal behavior of ETICS

Materials and Testing Methods
Results and Discussion
Conclusions

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