A chimney chase cover, sometimes called a chase pan, is an important protective component of a chimney system. This stainless steel cover fits over the top of the chimney structure and serves several crucial functions. Read on to learn how a properly installed chimney chase cover shields the interior of the chimney chase from weather damage and unwelcome critters.
Preventing Water Infiltration
One of the main jobs of a chimney chase cover is preventing water from getting into the chase, which is the enclosed structure surrounding the flue. Rain, snow and ice can seep into the chase without a chase cover, leading to leaks, moisture damage, mold growth and deteriorated masonry. Corrosion of the damper, flue and termination cap can also occur.
A snug-fitting chase cover deflects falling precipitation and shields all sides of the chase. This includes vulnerable transition areas where the chase meets the roof. Quality chase covers feature sloped designs that allow water to rapidly run off. This is critical since pooling water can back up and still leak through poorly sealed edges.
Some covers come with rubber boots at connection points for enhanced waterproofing. Regular inspection of sealant and caulking around the chase cover is advised to maintain integrity. Signs of leaks like damp areas, efflorescence and staining indicate resealing is needed.
Deterring Pests
Another benefit of a sealed chase cover is deterring pest infestation. Birds, raccoons, squirrels and bats can all access open chimney tops. They may nest in the flue or chase, creating blockages, hazards, unsanitary conditions and even structural damage from gnawing. The small gaps rats and mice need for entry are also blocked.
The snug fit and durable construction of a chimney chase cover removes access points. Pests trying to nibble or claw through will be unsuccessful. Some covers even feature mesh screens at the flue opening for further impenetrable protection while still allowing proper ventilation. Regular inspection is recommended to ensure animals have not compromised any seals or screens.
Added Structural Protection
The sturdy materials and construction of chimney chase covers also protect the physical integrity of the underlying structure. Metal covers withstand impacts from falling tree debris that could fracture masonry crowns. Weighty snow and small hail will not compromise the flashing joints.
High winds are also mitigated since covers are tightly affixed to the chase. The broad cover helps prevent drafts through the flue that could lower efficiency as well. Overall, a properly sealed chase cover adds an extra layer of durable defense against the elements to the chimney system.
Improved Safety
Several safety enhancements also stem from a chase cover. The barrier eliminates the risk of debris, tools or other objects accidentally falling down the open flue. The slick surface deters would-be trespassers from climbing onto the risky heights of the roof. Fire risks are reduced by keeping flammable debris or nesting materials out of the flue area.
Added Visual Appeal
Beyond functional benefits, chimney chase covers also boost aesthetics. The sleek stainless steel seamlessly matches and complements modern flue pipe designs. Covers conceal unsightly endings and protruding flue components for a streamlined rooftop appearance. For homeowners wishing to update dated chimney tops, installing new chase covers provides an easy aesthetic upgrade.
Conclusion
Chimney chase covers offer reliable multi-purpose protection, improved safety and visual curb appeal when properly installed and maintained. Homeowners should periodically check their chase covers for leaks, damage or gaps that compromise function. Repairs should be done promptly to retain the covers’ security against weather, pests and debris hazards. With basic care, chimney chase covers defend against chronic issues stemming from exposed flue openings.