Prepare for the exposed building envelope
Removal and replacement may be separate contracts. Ask who is responsible for temporary weather protection, access equipment and the interface with window or roof work. If the scope changes after concealed layers are exposed, stop and have those materials addressed before ordinary construction continues. Do not break off a siding piece merely to identify it.
Survey and project requirements in Washington
Puget Sound Clean Air Agency publishes separate guidance for renovation and demolition. Have the assessor and contractor confirm the survey scope, applicable notifications and disposal arrangements for the actual property and work. A building permit does not replace the asbestos assessment.
See the broader asbestos removal options at Kirkland Asbestos Removal.