WESTFORD -- Students in the carpentry program at Nashoba Valley Technical High School are putting the finishing touches on a community-service project to replace the roof on the historic School District No. 3 in Pepperell.

The one-story brick structure, built in 1844 on Shattuck Street, is being restored by the Pepperell Historical Society. The building was home to the Shipley Hill School, then School District No. 3. After the restoration is complete, the Historical Society plans to turn the building into a local museum and space for meetings, lectures, special exhibits and demonstrations.

Through the community service program, Nashoba Tech students and staff are available to perform projects for its district towns -- Ayer, Chelmsford, Groton, Littleton, Pepperell, Shirley, Townsend and Westford -- and only charge for materials, saving the communities the cost of labor.

Nashoba Tech students and staff, led by carpentry instructor Tony Cerra, are putting new shingles on the roof of Schoolhouse District 3 and shoring it up.