DRTT - DIRTT Environmental Solutions Ltd. 2020 Q4 - Results - Earnings Call Presentation February, 26 2021 11:24 AM DIRTT Environmental Solutions Ltd. The following slide deck was published by DIRTT Environmental Solutions Ltd. in conjunction with their 2020 Q4 earnings call. For further details see: DIRTT Environmental Solutions Ltd. 2020 Q4 - Results - Earnings Call Presentation