Oak Bluffs voters will gather for a special town meeting Tuesday to vote on two major spending issues: additional money for the new town hall project and funds for a new roof and heating system at the Oak Bluffs School.

The meeting begins at 7 p.m. at the Oak Bluffs School. There are eight articles on the warrant. A special town election follows on Nov. 15, with one question aiming to exempt the debt for the town hall money from the provisions of Proposition 2 1/2. Polls will be open from 10 a.m. to 7 p.m. at the Oak Bluffs Library meeting room.

Town officials are urging voters to participate in both the special town meeting and election.

“It’s absolutely critical,” said town administrator Bob Whritenour. “We’ve got a very transparent community and our local residents are completely engaged in our decision-making process. We hope everyone in town is going to come out and vote, and have a voice in the future of the town.”

Town leaders need another $1.3 million to complete the long-planned town hall replacement project that dates to 2014 and has involved more than one town meeting and election to raise the money.

The project finally won voter approval last spring, but in two rounds of public bidding this summer, construction proposals came in over budget.

Voters have already approved $9.9 million for the project. The additional $1.3 million would allow the town to accept the latest bid and begin construction. A two-thirds vote is needed on the town meeting floor, and the article is also tied to the debt exemption ballot question in the special election two days later.

The town financial advisory committee voted 6 to 1 to support the spending.

Another article on the warrant asks voters for $7.8 million for a new roof and heating and ventilation system for the school. Because it involves borrowing money, the school roof also needs a two-thirds majority to pass. The finance committee also voted 6-1 to back the spending for this project.

Three articles pertain to the town wastewater district. One seeks a transfer of $15,200 from the district’s retained earning account to pay for the town’s share of a grant that creates an asset management plan, as required by the state. Another article seeks to transfer $25,000 from the same account to pay for the town’s share of a grant to install permeable barriers in Lagoon Pond. The project, in conjunction with the town of Tisbury, is part of a pilot program to reduce nitrogen pollution in the saltwater pond. A third article would return $86,000 to the retained earnings account. Voters at last year’s annual town meeting appropriated $100,000 for a wastewater study, but most of the appropriation was not needed, and wastewater district commissioners are asking the town to return the money to the fund.

A final article is a redundant request for the $1.3 million in town hall money — the article was put on the warrant by petition before the selectmen decided to put in their own article. The article is expected to be withdrawn on the town meeting floor.