After it considers the evidence presented, the board must appoint an inspection committee consisting of three or more members to inspect each property subject to appeal. The committee must inspect the property and submit a written report to the board within 30 days. Within 15 days of receiving the committee report, the board shall issue a written decision, which must include the reasons the board arrived at its conclusion. This document is then filed with the town clerk, who records it in the same book where the appeal was recorded and, without delay, notifies the appellant of the action of the board by certified mail.