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6. Conforming reliefs
6.1 Waterproofing's weak point: upstands
Careful installation of new reliefs is of the utmost importance. According to insurance company statistics, waterproofing upstands are the most frequent cause of damage to flat roofs.
To protect the upstands from UV rays, it is imperative to use bituminous membranes dressed with gravel, tinted or not, slate flakes, or 8/100th-thick metal sheets in aluminum or copper.
Details: a new relief must be created, either to replace the existing one, or to double the relief retained. After repair, the relief must be fitted with a device that complies with current standards and protects the head against the ingress of water.
It may also be necessary...
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Conforming reliefs
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Bibliography
Websites
AFNOR http://www.afnor.fr
Agence Qualité et Construction http://www.qualiteconstruction.com
Standards and norms
Unified Technical Document (DTU)
- Travaux de bâtiment. Étanchéité des toitures. - DTU 43 -
French standards
- Travaux de bâtiment. Réfection des ouvrages d'étanchéité des toitures-terrasses ou inclinées. Partie 1 : cahier des clauses techniques. Partie 2 : cahier des clauses spéciales (référence commerciale du DTU 43.5). Indice de classement : P84-208. - NF P 84-208 - 11-02
- Travaux...
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