Historic Window Assessment and Rehabilitation Services

2026-11-03

a . Historic Window and Vestibule Door Assessment For the full assessment , focus on 34 historic windows ( east , west , south ). For the north side windows and the vestibule door , only evaluate trim and historic features and develop a maintenance protocol ; rehabilitation is not included on the north side or the vestibule door . • Assessment includes , at a minimum : 1 . Evaluation of interior and exterior components : wood , hardware , paint , glazing , sealants , and operability 2 . Standardized checklist documentation : elevations , significant architectural details , rough opening measurements , conditions , defects , and repair symbols 3 . Photographs of all windows , including detailed images of notable features ( e . g ., muntins , wood joinery , sash profiles , hardware ) b . Window Repair Schedule • Classify repairs per Secretary of the Interior ’ s Preservation Briefs : 9 1 . Class I : Routine Maintenance 2 . Class II : Stabilization 3 . Class III : Splices and Parts Replacement • Include : 1 . Complete list of assessed windows 2 . Documentation of current conditions 3 . Recommended repair tasks c . Window Rehabilitation • Execute repair work on east , west , and south windows in compliance with the Secretary of the Interior ’ s Preservation Briefs : 9 . • Tasks include , but are not limited to : 1 . Removing sashes , interior stops , and parting beads 2 . Repairing or replacing deteriorated glazing with energy - efficient materials , preserving historic character 3 . Cleaning and paint removal from frames and sashes 4 . Caulking and sealing joints 5 . Installing new gaskets ( V - groove , bubble gaskets ) 6 . Priming and painting frames and sashes 7 . Restoring or replacing hardware • Temporary protection of openings during work is required to prevent disruption of building operations .

MITN

2026-05-14