df0f7f84   
   From: bf680a3126ec737c359611ab24e6ceb2@example.com   
      
   I have a wooden chimney chase like the one in the attached picture.   
      
   I have an idea about an improvement that I tried to capture in a crude diagram   
   that is also attached.  I'll try to explain the idea:   
      
   Last summer I did a lot of work removing all the siding (T1-11), and old   
   asphalt paper moisture barrier, and carefully replaced framing wood that   
   showed a little bit of termite damage.  Pressure treated stuff (rated for   
   above ground use) was used for    
   replacement. Also, the ground around the chimney chase has been treated by a   
   local professional, should be good against subterranean termites for 8 to 10   
   years.  So, lots done.   
      
   The termite guy had an observation I found interesting.  He said that in our   
   region, it always seems like the chimney chases are where the termites like to   
   go.  We talked and thought maybe it's because chimney chases are dead air,   
   sealed up, and maybe    
   they become moisture traps, due to hot/cold cycles, condensation, etc.    
   Termites like moisture.   
      
   My thought is that during the summer and warmer months, maybe it would help to   
   promote "vertical stack ventilation", where air enters at the bottom of   
   structure, heats up, then rises and escapes through some kind of storm-proof   
   vent at the top. This    
   should in theory dry things out nicely.  In my small chimney chase, about 18   
   feet tall, there is no blocking wall or whatever on the inside of the chimney   
   chase, it's all open space.  I understand that in a multi-story building,   
   there should be firewalls    
   to prevent any vertical spread of flames inside the chimney chase, but that's   
   not how mine was built, I guess.   
      
   To make vertical stack ventilation possible, I think I would need an opening   
   at the base of the chimney chase, well screened against critters.  And it   
   would be on me to ensure it had a tight hatch cover that would go on when the   
   hot months were over.   
      
    It seems like it should work to keep the chimney chase well dried out.  But   
   I'd be curious what people think.  I don't have a lot of ego about this, so if   
   I'm wrong, I'm wrong.   
   https://www.homeownershub.com/img/3ebx   
   https://www.homeownershub.com/img/3eby   
      
   --   
   For full context, visit https://www.homeownershub.com/maintenanc   
   /had-an-idea-for-vertical-stack-ventilation-of-chimney-chase-3503918-.htm   
      
   --- SoupGate-DOS v1.05   
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