Primarily they keep out rain snow animals and other foreign objects from entering the chimney all of which can have a devastating affect on the interior of your chimney over time.
Chimney top chase cover.
The cost difference is minimal between galvanized compared to stainless steel.
Fireside chimney supply metal chimney covers are constructed of high quality 304 stainless steel with a gauge thickness of 24.
If you are looking to replace yours you probably have lightweight aluminum or rusted galvanized steel.
There are several choices of materials when selecting a chase cover but only stainless steel or copper will offer you a lifetime warranty.
Chimney chase covers have a very important function.
Heavier gauge options are available.
Chimney chase covers if you have a pre fab chimney with wood metal or vinyl siding a chase cover is the lid that keeps water and animals out of your chimney.
The chimney cap goes on top of your chase cover.
Chimney chase covers are shaped like the lid of a shoe box and are commonly installed with pre fabricated fireplaces that have a wood frame chimney chase.
Stainless steel chase covers chase covers are used at the top of chimneys to keep out rain snow critters and everything else.
Chase covers are an external top covering for a pre fab chimney or a brick chimney.
The chase cover covers the entire top of your chimney.