My second floor is made up of tongue and groove 2/6 wood boards. Some of the floor boards are eaten up by termites. Some of the boards are underneath the walls that support the roof. Is it possible to replace the boards without damaging the house? Also i have no sheetrock on the walls and the floors are bare. there is no carpet or laminate or anything on the floor. We are curently under construction. Should i replace all of the floor boards or just the ones that need it? My house is approximately 2000 sq. ft. 20 percent of the boards are bad and not all are next to each other. The house was built in the 1980's.