DRTT - DIRTT Environmental Solutions Ltd. 2021 Q1 - Results - Earnings Call Presentation May, 06 2021 03:42 PM DIRTT Environmental Solutions Ltd. The following slide deck was published by DIRTT Environmental Solutions Ltd. in conjunction with their 2021 Q1 earnings call. For further details see: DIRTT Environmental Solutions Ltd. 2021 Q1 - Results - Earnings Call Presentation