Even an unused flue can grow mildew, deteriorate from the process of weathering, or become home to local wildlife. Ordinary use and typical wear and tear can clog up a flue with noxious soot, creosote, and debris. Chimney Cricket specializes in historical chimney restoration.īoth the National Fire Protection Association and local building codes in PA require all chimneys be inspected and maintained annually. A chimney that can no longer perform its intended function- to contain and transfer the products of combustion, must be repaired or rebuilt. Other typical hazards found in older homes are combustible materials built into the flue itself and wood flooring directly under the fireplace- both of which are common sources of unwanted fires. Further deterioration occurs to the interior of the chimney from the presence of the products of combustion created during the use of your home heating appliance. In particular, acid rain in the Philadelphia area wreaks havoc on exterior masonry surfaces. Even when built well- with suitable materials and proper design- these systems naturally deteriorate over time. The pragmatic use of substandard materials and the lack of industry codes and standards during construction make many of these venting systems hazardous. Many of the chimneys and fireplaces, however, are not suitable for use as they stand because of inherent design defects. The Philadelphia area is blessed with a rich architectural history with many original structures still in use today.
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