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Cross passage ventilation

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Commercial aspects<br />

Price escalation (ÖNORM B2111)<br />

Indices Split-up<br />

Labour: Baukostenindex Baunebengewerbe<br />

Product:<br />

Lüftung und Klima 100%<br />

Labour: Baukostenindex für Lüftung und Klima 60%<br />

Material: Großhandelspreisindex „51.52.21<br />

Eisen und Stahl“ 40%<br />

6 th Conference “Tunnel Safety and Ventilation” Graz 22-24 April 2012 29

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