Ossining Roof Replacement

SJH was retained by MNR to replace the existing hip roof of Ossining Station building to bring the terra cotta tile roof into a state of good repair. The Renaissance Revival style station roof was originally constructed in 1914. As one of twenty-five historic MNR stations, any work at this building required compliance with the State Historic Preservation Office guidelines. The rectangular 96’ 4” x 36’ 4” building spans over the MNR tracks. A Capital Needs Assessment rated the roof as a ‘4’, which was noted as deteriorated/in bad condition with several leaks. The focus of this project is to replace the roof in kind. The project also includes repairing timber canopies around the building and replacing the gutters and leaders. SJH was subsequently retained to design roof replacements at Hastings and Tuckahoe Stations.

SJH performed the inspection of the structural roof members, the existing electrical lighting and other systems, the canopies and other elements. Based on the inspection findings, we developed design details for the replacement of the deteriorated structural members and the replacement of the entire roofing systems. Some of the timber canopies on the outside were identified for replacement. The proposed canopies had to match the existing canopies at these historic station buildings. The design included stripping of the timber decking and replacing everything above the decking. The proposed new decking consisted of tongue and groove color and shape. Two layers of felt paper were placed under the roof tiles.

SJH developed phasing plans, such that the roofs can be replaced in stages without interfering with the MNR rail and station operations. Extensive coordination was involved with MNR to identify railroad flagging and force account requirements during construction. SJH developed cost estimates, broken down as material and labor costs, prepared specifications following CSI format, and provided Construction Support Services.