International Green Roof Association
PO Box 2025
72610 Nuertingen - Germany
Tel.: +49 7022 / 71 91 980
E-Mail: info@igra-world.com
Har udgivet manual. The manual provides in-depth information about green roof system projects. The information contained in the manual was developed by NRCA member contractors and applies to roofing contractors, designers, manufacturers, and third-party individuals involved with green roof system design and installation.
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