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1. Waterproofing flat roofs
1.1 Regulations and classification. Terminology
This is a vast and complex subject: it involves a large number of parameters (nature of supports, thermal insulation, slopes, protection above the waterproofing coatings, etc.), techniques and possible products (most of the various waterproofing products we have studied can be used).
The result is a very large number of possible combinations - several thousand - which are codified, as far as traditional materials are concerned, by 4 DTUs (DTU 43-1 to DTU 43-4) (cf. ).
What's more, we've seen that the modern coatings that appeared from 1975 onwards - bitumen-elastomer coatings, then membranes - are referred to as non-traditional, and are the subject of technical opinions...
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Waterproofing flat roofs
Examples of waterproofing for flat roofs
Bibliography
General works
Recent thesis
Professional rules: DTU and CPT
▪ Unified technical documents
- Installation work – Waterproofing of flat roofs with load-bearing masonry elements – Part 1: Technical specifications – Part 2: special clauses (commercial reference for parts 1 and 2 of DTU 43.1). - DTU 43.1 -
- Installation work – Waterproofing of flat roofs with load-bearing masonry elements – Part 1: Technical specifications. - DTU 43.1 -
- Building work...
Standardization
French and European standards AFNOR
Flexible sealing foils
- Flexible sealing foils – Part 1: bituminous roofing membranes – Determination of dimensional stability. - NF EN 1107-1 - Décembre 1999
- Flexible sealing foils – Determining dimensional stability – Part 2: plastic and elastomer roof waterproofing sheets....
Manufacturers of waterproofing systems
(Non-exhaustive list)
Axter E-mail : [email protected]http://www.axter.fr
Meple – Groupe IKO http://www.meple.com
Siplast Icopal
[email protected]
Characteristics of some commercial coatings used as examples in the articles [C 3555] and [C 3 556]
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Hyrène TS from Axter (table 1 )
Hyrène and Hyrène TS are waterproofing systems comprising several layers or sheets of SBS modified bitumen.
...
Example of a data sheet
This example concerns the Sikaplan ® membrane from Sika Trocal, which has the following application characteristics:
material/composition: reinforced PVC-P calendered waterproofing membrane, non-bitumen-resistant, UV-resistant;
field of application: mechanically fastened single-layer waterproofing...
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