The construction industry should look into limiting the use of bamboo scaffolding if the situation calls for it, according to Siu Sin-man from the Association for the Rights of Industrial Accident Victims.

A scaffolding collapse at a Kai Tak construction site last month injured 11 workers, sparking discussions about replacing bamboo altogether with metal scaffolding.

Speaking on a radio programme on Saturday, Siu said the industry should explore the possibility to limit the use of bamboo and find the most suitable material for each construction site.

"Bamboo is very special material and it's widely used in Hong Kong, but in other places, they don't use bamboo. That means there may be some shortcomings of this material," she said.

"I think we need to do more research on why some Hong Kong construction companies like to use metal material instead of bamboo."

The chairman of the Hong Kong Construction Industry Employees General Union, Chau Sze-kit, told the same programme that it is impossible to completely scrap the use of bamboo scaffold immediately.

He suggested the industry should instead look into ways of implementing safety mechanisms when using either bamboo or metal scaffold.