The Reims Cathedral was reopened in 1938 (about 20 years after the start of the restoration). But in this kind of restoration, the devil is in the details, re

The Reims Cathedral was reopened in 1938 (about 20 years after the start of the restoration). But in this kind of restoration, the devil is in the details, repairing the structure and rebuilding the roof and the spire will probably take around 8 to 10 years, if the vault is not in too bad of a shape, more otherwise. But repairing the the sculptures and decoration, with all their minutes details will take generations. For these, what was not destroyed by the fire is probably heavily damaged by the tons of waters poured to save the edifice.