A temporary tax increase to help fund several building projects is the subject of a special election Saturday. The $5.27 million debt exclusion would fund $3.45 million of the $8.8 million cost of renovating the Academy Building, a municipal office building that was recently vacated due to health and safety issues, according to Town Manager Michael Dutton. Officials are proposing to tap the town’s Community Preservation Act Fund and seek state grant funds to cover the remainder. The debt exclusion also would help pay for work on the roofs of the Bridgewater Middle School and the fire station, and for making the Memorial Building more handicapped-accessible. The Town Council on July 19 approved funding for the four projects subject to passage of the debt exclusion. Voting hours are 7 a.m. to 8 p.m. at the Middle School, 166 Mount Prospect St.