One more step done , because i deceided to strip the ceilling with Cedar, I need to cover the it with 2 tickness of 6 oz cloth with epoxy.The following picture shows one part of it done, I need to do it by step because It was tack with staple.
https://drive.google.com/file/d/1q6tb5wFL7960488xADZSmBQJGZgOo66K/view?usp=sharing