What is a Chimney Chase Cover?

By
Residential Home Builder with Chase Toppers, LLC

A chase cover, sometimes referred to as a chase top, is a metal covering designed to keep things like rain, snow, and animals from entering a home via the chimney chase.  This chimney chase cover is typically made of less expensive galvanized sheet metal.  Unfortunately, rust on a chimney's exterior is more than just a cosmetic problem; it could be a sign of much more serious issues.  Heat from the fireplace and various environmental conditions contribute to the breakdown of the galvanized coating on chase covers until the metal is completely unprotected and begins to rust.  The rust continues to deteriorate the chase cover allowing water from rain and melting snow into your home causing interior damage. Visit this website to see examples of chimney chase covers.

Rusty Galvanized Chimney Chase Cover Stainless Steel Chimney Chase Cover

Replacing chimney chase covers, we see a lot of "questionable" installs.   Here is one example we (Chase Toppers) had the pleasure of solving.

This builder decided to use 2 sheets of galvanized sheet metal to fabricate this chase cover on site. Note the roofing tar between the two sheets of metal. The customer reported that their fireplaces leaked "for years". Rusty Galvanized Chimney Chase Covers

Here is our custom Stainless Steel Chase Cover to replace the failed galvanized cover:
Rusty Galvanized Chimney Chase Covers

New Home Builders may be especially interested in choosing stainless steel chase covers for their customers homes.  Homeowners will be singing your praises instead of complaining about their rusty, leaky chimney to other prospective new home buyers.  We work with builders, property managers, and homeowners alike to provide this lifetime solution for their homes. 

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Comments 33 New Comment

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Rainer
73,665
Sabrina Kelley
Pikes Peak Region Realtor, Teller, Park and El Paso County Colorado
ERA The Herman Group

Great education. I deal with many wood stoves and chimneys here in the Park and Teller counties of Colorado.

I appreciate the pointers.

June 16, 2008 08:30 PM
Rainmaker
1,751,626
Gita Bantwal
REALTOR,ABR,CRS,SRES,GRI - Bucks County & Philadel
RE/MAX Centre Realtors

Thanks for the post. I will mention it to my clients. I will bookmark this post.

June 25, 2008 06:04 AM
Anonymous #31
Anonymous
yan

We just had a stainless steel chase top installed. Nine days late, when it rained, it was leaking. What can go wrong? Thanks!

August 03, 2011 10:21 PM
Rainer
3,948
Tom Francis
Chase Toppers, LLC

Hi Yan,

It depends on where the leak is.  If you have water coming in through your fireplace itself (where the wood/gas burns), then water is traveling straight down your flue pipe.  This is due to a problem with the flue cap or installation of the cap.  If water is entering your home around the fireplace (for example, the drywall around the fireplace is wet), then there could be a problem with the chase cover itself.  If this is the case, have your contractor examine the seam where the collar of the chase cover meets the horizontal part of the chase cover.  It could be possible that a weld on that seem could have been "burned through" during fabrication of the cover.  Hope this helps.  Thanks for your question, and have a great day!  -Tom

August 04, 2011 09:00 AM
Anonymous #33
Anonymous
reid

Couldn't agree more Tom. In fact, we wrote an article - http://www.highschimney.com/articles/guide-to-buying-chimney-chase-covers/ - saying the same thing - galvanized covers rust, and stainless is the much better option.   Cheers!

April 09, 2012 01:51 PM
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Rainer
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Tom Francis

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Dedicated to education on chimney related issues.