Representatives of the Massachusetts School Building Authority toured Walpole High School and the Fisher School this month to get a first-hand look at the leaky roofs, windows, and walls that school administrators say must be repaired immediately. The state agency will decide July 31 whether to approve the approximately $1.1 million that the town has requested for the work, according to Walpole Superintendent Lincoln Lynch. If approved, the grant would cover about half of the total cost of repairs, which are estimated at $1.5 million at the Fisher and $700,000 at the high school, he said. He said the high school roof was damaged in a storm last fall, and the elementary school’s problems are the result of age and wear-and-tear. We have the leaking under control, but it’s just a Band-Aid approach on both buildings,” Lynch said.