Ontario has joined other provinces in a growing trend to upgrade its building code allowing encapsulated mass timber construction up to 18 storeys tall. An upgrade in Ontario’s Building Code, which currently permits residential and commercial buildings to use mass timber up to 12 storeys tall, will help build homes faster and reduce long-term construction costs, the province said in announcing the move Monday. …Increasing the building code regulation to 18 storeys will provide an incentive for more architects, engineers and building developers to create structures using mass timber, Anne Koven, executive director from the Mass Timber Institute at the University of Toronto said. …Increasing the building code regulation to 18 storeys will provide an incentive for more architects, engineers and building developers to create structures using mass timber, Koven added.