Holbrook school officials plan to file updates to state paperwork that reflect worsening conditions at the community’s two elementary school buildings, according to Superintendent Joseph Baeta. The annual updates, due April 10, pertain to statements of interest filed with the Massachusetts School Building Authority, which helps school districts pay for construction projects. Although Holbrook has a construction project in the pipeline that would include older grades, the statements on the elementary schools show the agency that Holbrook has other needs as well, Baeta said. Both schools have roofs that are nearly 20 years old but were warrantied for only 10, and on Tuesday South Elementary School was dealing with a new leak, he said. The schools also have single-pane windows, and problems with plumbing, electrical systems, and disability access. The John F. Kennedy Elementary School is overcrowded, he said.