Within thirty days after the public hearing required in Section 1105.36, the Building and Zoning Appeals Board shall either approve, approve with supplementary conditions as specified in Section 1105.35 or disapprove the request for appeal or variance. The Board shall further make a finding that the reasons set forth in the application justify the granting of the variance that will make possible a reasonable use of the land, building or structure. Appeals from Board decisions shall be made in the manner specified in Section 1105.08.