Members of the board shall be reimbursed from the Hospital Building Account in the Architecture Public Building Fund for their reasonable actual expenses in attending meetings conducted to carry out the provisions of this chapter, and they shall receive from that account per diem of one hundred dollars ($100) for each day actually spent in the discharge of official duties where attendance at one or more publicly scheduled meetings or hearings of the board is required by the board’s chairperson. However, they shall receive no other compensation from that account for their services.