Treatment Guidance Treatment guidance provides recommendations for the preservation and repair of Harbeck-Bergheim House. Treatment guidance is presented according to six landscape characteristics - topography, spatial organization, circulation, buildings and structures, small scale features, and vegetation. Topography and Spatial Organization Protect Harbeck-Bergheim House's site composition by maintaining the sloped and terraced topography, open front lawn and perimeter and street trees. • Ensure future tree plantings or new additions do not diminish views to the Harbeck-Bergheim House or to the Boulder Flatirons. Circulation Protect Harbeck-Bergheim House's original features including sandstone steps, sandstone paving from Euclid Avenue to the main entry, and sandstone paving from 12th Street to the rear entry. • Repair stone paving; • Repair asphalt driveway and parking; • Consider installing an ADA-compliant accessible route to the front porch and main entry. Buildings and Structures Rehabilitate, stabilize, and preserve the Harbeck-Bergheim House. • Preserve and repair extant architectural features in-place including roofing, ceilings, walls, flooring, openings, and appendages. ○ Repair and replace damaged or missing exterior drainage; ○ Repoint exterior masonry walls and chimneys and replace disintegrating stones; ○ Conduct a trial of different stone consolidants on a discrete area of the building to determine the most appropriate coating to protect the masonry; ○ Conduct a trial of different anti-graffiti coatings on the walls to find a suitable coating for the building’s masonry accessible for tagging; ○ Rehabilitate the wood porch portico in its entirety – wood balusters and soffits, stone masonry columns, stabilize and replace roofing material, etc.; ○ Replace broken or missing window and door components –window and door screens, hardware, and panes. • Preserve and repair extant structural features in-place including the roof and floor framing, masonry walls, and other structural features. ○ Foundation Walls - Rake out deteriorated mortar joints of the exposed foundation walls and repoint with an appropriate mortar as determined by a mortar analysis of a sample of the original mortar. Remove the efflorescence with a poultice then monitor the interior of the basement walls for signs of water infiltration or return of efflorescence. Further water management treatments may be necessary. ○ Floor Framing - If the building will be utilized for a use other than residences or offices, further investigation and analysis of the floor framing configuration and capacity will be necessary to determine if the structure needs to be strengthened. ○ Roof Framing - The addition of insulation to the eaves in the attic will not require roof strengthening. Since the current roof structure is performing adequately and the majority of the attic is already insulated, insulating the eaves would not cause a significance to the roof snow load. ○ Walls - Repair the masonry walls as noted above to improve the structural longevity of the building.
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