Decreasing Negative Influence of Under-Flow Rainwater Inverted Green Roofs on Passive Houses, Using Accumulating Hydrophilic Mineral Wool Panels

Abstract:

This paper focuses on safety rainwater runoff from inverted green roof construction. Water flowing between XPS insulation panels has negative impact on thermal characteristics of whole roof. This water deteriorates thermal efficiency of insulation and also microlayers which hinder diffusion are created. The negative effect is especially manifested in passive houses with inverted roof assemblies. The aim of the paper is to describe the negative effect of under-flowing water, to mention various types of green roof usage and the final assessment.

• Periodical: Applied Mechanics and Materials (Volume 824)
• Pages: 786-794
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.824.786
• Online since: January 2016
• Authors: Petr Vacek*, Libor Matějka
• Keywords: Green Roof, Hydrophilic Mineral Wool, Inverted Roof, Passive House, Rainwater

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