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Common Roof Forms
preservation of an historic structure. The standards on the following page with ensure that alterations to historic roofs are congruous with the special character of the historic district or local landmark property. Design Standards for Roofs 1. Identify, retain, and preserve
Side Gable Front Gable Center Gable Cross Gable
Gambrel
Pyramidal
Hip
Cross Hip
historic roof features and materials including roof form, roof shape, roof pitch, overhang, roof materials, textures, shingles, flashing, ice stops, cresting, dormers, vents, gutters, and downspouts. 2. Protect and maintain historic roof features, forms, materials, and details through a program of regular maintenance and repair using accepted preservation methods. 3. Repair historic roof features, forms, materials, and details in kind matching the original in size, scale, color, design, material, detail, texture, and finish. 4. Replace deteriorated roof features, forms, materials, and details in kind only if it is deteriorated beyond repair. If replacement is required, replace only the damaged portion using materials that match the original in size, scale, color, design, material, detail, texture, and finish. Use substitute materials only if the original material is no longer available and match the original material as closely as possible. 5. It is appropriate to install low-profile ridge vents if they do not diminish the design of the roof or destroy historic roofing materials and details. 6. It is appropriate to replace gutters and downspouts
with materials that match the original. Paint downspouts and gutters in a color appropriate to the building and historic district, except for copper gutters and downspouts which shall remain unpainted. It is inappropriate to damage or conceal architectural features and details with the installation of gutters and/or downspouts. 7. It is appropriate to install new gutters and downspouts to prevent water infiltration and soil erosion provided they do not damage or conceal architectural features and details with the installation. New gutters and downspouts shall be painted or finished appropriately. 8. It is inappropriate to replace concealed, built-in gutter systems with modern exposed gutters. If they are deteriorated beyond repair, abandon the system and cover over it with new sheathing and finished roofing to match the existing roofing as closely as possible.
prot ect ROOFS w i t h rou t i ne MAINTENANCE P • Conduct routine inspections. • Check condition of roof material or shingles. • Inspect for leaks and damage. • Ensure flashing, valleys, gutters, and downspouts are clear of debris. • Ensure downspouts are functioning properly. • Maintain a sound paint film on standing seam metal roofs.
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