This chimney was cracked, loose and crumbling due to extensive saturation decay to the brick masonry cells. During saturation, this chimney had gone through extensive expansion and contraction during freezing temperatures. The state of this chimney was due to multiple factors, including: lack of a proper chimney cap and a lack of a water seal treatment. This chimney had become heavily saturated and the bricks and mortar joints had been extensively damaged due to the saturation decay. A proper chimney cap is one that shelters and protects the entire masonry
crown footprint and all terminations, with a screen to keep out pests and debris. A masonry chimney is a clay porous structure that absorbs water and becomes saturated in the PNW climate. In this saturated state, masonry decay is accelerated. It is regular exterior building maintenance to apply a water sealant to any masonry structure every 10 years.
This chimney had been painted with a rubberized paint.
We took this chimney down to the roof line, and rebuild it with proper flashing and new brick. Below the roof line, we completely removed the paint and performed a tuck point on the mortar joints. Here you see a beautiful, rebuild NE Portland Chimney back to its former glory.
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