Creation and procedure. The Zoning Board of Appeals, which is established under § 267 of the Town Law of New York State, shall consist of five members. The Town Board shall annually designate a member of said Zoning Board to act as Chairman thereof, or, on failure to do so, the Zoning Board shall elect a Chairman from its members. The Zoning Board of Appeals shall have the power to adopt, for its procedure and government, rules not inconsistent with law or ordinance. Meetings of the Board shall be held at the call of the Chairman and at such times as the Board may determine. The Chairman or, in his absence, the Acting Chairman shall preside. The presence of three members shall constitute a quorum. The concurring vote of a majority of the members of such Board shall be necessary to reverse any order, requirements, decision or determination of the Building Inspector/Code Enforcement Officer or to grant any variance from the requirements of this chapter. All hearings shall be open to the public and duly advertised as to nature, time and place of meeting. Such notice shall be not less than five days in advance of such meeting. The Zoning Board of Appeals shall keep minutes of its proceedings, showing the vote of each member upon every question or, if absent or failing to vote, indicating such fact, and shall also keep records of its examination and other official actions. Every rule, regulation, every amendment or repeal thereof and every order, requirement, decision or determination of the Board shall immediately be filed in the offices of the Town Clerk and shall be a public record.