Christchurch Cathedral parts have been wet cardboard

Parts of Christchurch's cardboard cathedral have become sodden and crumpled after heavy rain.

The warping does not affect the structure integrity of the multi-million dollar cathedral as the large cardboard columns encase wooden beams, otter case an Anglican church spokesman says.

Weather damage was expected, he said.

Workers fix it by cutting out the affected sections and replacing the cardboard.

The rain hit before the roof was completed fr4 pcb.

Construction of the 700-seat, $5.3 million cardboard cathedral, designed by Japanese architect Shigeru Ban, started in Latimer Square in February. It was due to be completed by July 26.

The "temporary" cathedral has an expected lifespan of 50 years.

The original cathedral was left in ruins by the February 2011 magnitude 6.3 earthquake label sticker, which caused widespread damage and killed 185 people.