Properties Magazine April 2017 : Page 71

Behind the Building Envelope BACK ON TOP Because of the poor state of the existing slate roof (left), the barn was completely re-roofed with a new system (right). Project Profile: Levi J. Hartong Barn Historical structure in the City of Green gets a much needed roof renovation By Alison Kamis | Photos courtesy of Absolute Roofing he Levi J. Hartong barn is located in the City of Green and is considered to be a significant his-torical structure in the area. The bank barn is an approximately 45-foot by 90-foot timber-frame Standard Pennsylvania barn finished in vertical wood boards. A date stone on the foundation of the barn bears the inscription L.J. HARTONG and the date 1883. The barn reflects the Pennsylvania German heritage of the Hartong Family and the Pennsylvania German building traditions prevalent in Green at the time of construction. T The forebay faces east, allowing the direct sun to warm the livestock, and a wagon ramp accesses the barn from the west, opening into a generous hay mow and granary. A fenced barnyard is imme-diately east of the barn. The facility identified the need for a complete replacement of the slate roof after the existing slate roof began failing and started to leak into the barn and onto the equipment, hay and horse stalls below. A thorough inspection performed by a local architect confirmed this. Absolute Roofing and Construction, Inc., a locally owned family company, was awarded the project after a competitive bid process was performed. Absolute was chosen not only for its price but also for its expertise in specialty roofing and its work on historic restoration projects. The crucial areas of restoration were identified as: 1) removal and replace-ment of the existing deteriorated slate, 2) replacement of all of the existing flash-ings, 3) replacement of all of wood batten nailers on the roof deck with a solid wood decking, 4) removal of existing gutters and replacement, and 5) installation of snow guards to prevent avalanches off of the roof. An analysis of the existing roof slates coupled with the damaged slate that were removed revealed the need to find additional slates to match the existing as close as possible. Due to budget con-straints, it was decided that a synthetic slate product manufactured by Davinci Roofscapes would be installed to the barn to retain the character of the original stale roof but at a fraction of the cost of real slate. A representative of the synthetic slate manufacturer was consulted to help find a product that would fit the needs of the city and also gain approval from the Ohio Historic Preservation Office. The City of Green, the proj-ect architect and Absolute Roofing personnel all agreed on the final color blend of the tile, which was required to appear as close as possible to the exist-ing materials. The actual worksite was very con-fined, with public entrances required to be maintained at all times. Access to the actual roof surface was only from two sides, one of which was a very muddy area that was difficult to traverse. Work had to be staged around the building operations and the public right of way. Scaffolding was set at all sides of the building for roof access. Staging of the materials was performed in the early morning hours with partial lot closure required due to the confines of the worksite. 71

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