EHN1 Roof consolidation EATM - 24-03-2015 F. Magnin – GS/SE/CEB.
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Transcript of EHN1 Roof consolidation EATM - 24-03-2015 F. Magnin – GS/SE/CEB.
EHN1 Roof consolidation
EATM - 24-03-2015
F. Magnin – GS/SE/CEB
EHN1 - Characteristics
Construction year: 1977 Primary use: Experimental hall Total surface: 15.000+ m2 Construction materials
Metallic structure and cladding Concrete slab Metal sheet / insulation / bituminous waterproofing
Roof issues
Recurring leaks Worn out waterproofing membrane Air bubbles Saturated insulation at low point
Executed works
Identification of the most critical area Reinforcing waterproofing membrane over 2000+ m2
Replacing saturated insulation Isolating renovated area from the rest of the roof Treatment of the roof crossing (ducts, pipes) Total cost: 155 kCHF (BC-76388 / 76389)
What is next for EHN1 consolidation
Keep going with phased roof consolidation Widening access to helium tank on the Jura side
(April 9th) Dealing with toilet evacuation issue Consolidation of the access ramp to the building on
the Jura side