Overview
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ABSTRACT
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
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Williams PAUCHET: Former National Defense contractor and freelancer - Site management trainer
INTRODUCTION
Although they have been available in France for over 20 years, thin single-layer synthetic membranes are still considered to be new materials, and are the subject of Avis Techniques and a "technical specification for the installation of roof waterproofing using PVC-P single-layer synthetic membranes", although this document (CPT) only covers PVC-P membranes and ignores other possible membranes: polyolefins, EPDM and others. There is therefore no DTU for these single-layer membranes. European technical approvals do exist, however.
In France, 15% of waterproofing on flat roofs is currently carried out using single-layer PVC or EPDM rubber membranes.
The special feature of this type of sealing is :
they can be fastened in three different ways: by gluing, mechanical fastening or ballasting;
they are suitable for all load-bearing elements: concrete, steel or wood, including steep roof slopes.
All these aspects of thin single-layer membranes (PVC, polyolefins, EPDM and others) will be studied in this article.
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Waterproofing roofs with thin, single-layer synthetic membranes
Bibliography
Standards
- Eurocode 9 – Calculating aluminum structures – Part 1-1: General rules (classification index: P22-151) - NF EN 1999-1-1 - Août 2007
- Eurocode 9: design of aluminum structures – Part 1-3: Fatigue-sensitive structures (Classification index: P22-153) - NF EN 1999-1-3 - Septembre 2007
- DTU 20.12 – Roof masonry and waterproofing – Masonry shells for waterproofed roofs – Part 1: Technical specifications + Erratum (February...
Other regulations
SIA standard 280 – Plastic waterproofing membranes (polymer membranes) – Performance requirements and material testing, 1996 edition
SIA standard 280 – Waterproofing membranes based on bitumen or bitumen-polymer – Performance requirements and material testing, 1992 edition
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