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TOPIC: Installation

Stucco chimney flashing

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I tried to cut a reglet (groove) in my stucco chimney with an angle grinder I borrowed from my neighbor. He didn't know what type of blade was in it but it looks like a typical abrasive blade. Sparks started flying when I hit the metal stucco mesh. The stucco is very thin. 1.) Do I cut through the stucco/metal mesh to create the groove for counter flashing? 2.) Should I be using a specific kind of blade to cut through the stucco and mesh? 3.) Can I just forget the reglet and stucco over the counter flashing to seal it assuming my counter flashing has a "shelf" to attach the new stucco fillet?
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10/7/2015
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1. Yes. 2. Masonry blade (diamond blade) should do the trick 3. You can, you are dependent on a caulking joint for water tightness at that point. Eric Novotny
Eric Novotny
An informed customer is the Best Customer!

10/7/2015
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Eric, I got the diamond blade and it cut like butter into the stucco, mesh, brick...see attachment. The counter flashing (not yet ordered) I'll be using has a 3/8" barb on the end and the horizontal length (that slides into the slot) of the top counter flashing is 1-1/4". How deep and wide should I make the groove? Thanks, Beth
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10/7/2015
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Make the cut so that the flashing is through the stucco to the base material. If there is any water behind the stucco, this will act kind of like a through wall flashing to get it to drain to outside. Eric Novotny
Eric Novotny
An informed customer is the Best Customer!

10/7/2015
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