JOINT FILING AGREEMENT

Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the common shares, without par value, of DIRTT Environmental Solutions Ltd., a company organized under the laws of Alberta, Canada. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: October 7, 2021

	22NW FUND, LP
	By:	22NW Fund GP, LLC General Partner
	By:	/s/ Xxxx X. English
		Name:	Xxxx X. English
		Title:	Manager

	22NW, LP
	By:	22NW GP, Inc. General Partner
	By:	/s/ Xxxx X. English
		Name:	Xxxx X. English
		Title:	President and Sole Shareholder

	22NW FUND GP, LLC
	By:	/s/ Xxxx X. English
		Name:	Xxxx X. English
		Title:	Manager

	22NW GP, INC.
	By:	/s/ Xxxx X. English
		Name:	Xxxx X. English
		Title:	President and Sole Shareholder

/s/ Xxxx X. English

XXXX X. ENGLISH

/s/ Xxxx X. Xxxxxxxxx

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/s/ Xxxxxx X. Xxxxx-Xxxxxx

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/s/ Xxxxxxxxx X. Xxxxx

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/s/ Xxxx X. Xxxxxxxx

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