TOPSHAM — Along with a proposed $38 million fiscal year 2019 budget, a $1.56 million bond for roof replacements will go to School Administrative District 75 voters in June.

If approved, the 10-year bond would be issued next spring. An interest-only payment of $33,000 would follow in fiscal year 2020, with the maximum annual payment of about $190,000 coming in fiscal year 2021, Business Director Mark Conrad explained at a March 29 budget forum at Bowdoin Central School.

Subsequent annual payments would shrink over the life of the bond. The impact on each town has yet to be determined, Conrad said.

The Bowdoin Central School roof would be replaced at a cost of nearly $450,000, as would the roof on the 1964 addition, part of the 1959 addition and the gym roof at the Williams-Cone Elementary School for nearly $432,000, along with the roofs on the 1956 building and 1960 and 1987 additions at Harpswell Community School for about $358,000.

Additionally, the roof on the gym and adjacent health rooms and health wing canopy would be replaced at Mt. Ararat Middle School for $320,000. Structural upgrades to the gym and adjacent health rooms there, as well as to the Williams-Cone gym, are also planned.

“From my perspective, if we don’t bond those roofs, we’re going to have to find a way to put more operating (budget) into those roofs,” Conrad said. “What we can’t do is just ignore the issue; we’ve got to maintain watertight roofs for our students, or you’re going to have air quality concerns.”

The Bowdoin roof is 16 years old, and the others are between 26 and 33, he noted.

Conrad said the work is not included in the operating budget because state law requires such an expense to be a separate ballot article from the June budget validation referendum.

“The voters have a direct opportunity to approve it or not approve it at the ballot box,” Conrad added.

As proposed and still subject to change, next year’s budget would increase 1.9 percent, with a districtwide tax hike of 4.25 percent.

“It plays out differently in each town based upon your valuation, and the number of students you have attending,” Superintendent Brad Smith explained.

With revenues such as state subsidy subtracted from the proposed budget, $24.2 million is left to come from taxpayers in SAD 75’s four towns. Of this, Topsham could pay $10.3 million, up 6.8 percent; Harpswell $7.8 million, up 0.9 percent; Bowdoin $2.9 million, up 3.7 percent; and Bowdoinham $3.1 million, up 5.1 percent.

The SAD 75 board of directors will approve a budget April 26. It will go to voters on May 24 and June 12. The second vote will include the budget and roofs bond.