Best way to seal unused chimney
#1
01-30-15, 01:28 PM
Best way to seal unused chimney
i no longer use my fireplace whats the best way to seal my chimney on the roof?
#3
01-30-15, 02:30 PM
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I form up a metal cap and use construction adhesive to glue it in place so the wind can't blow it off.
#5
02-05-15, 04:02 PM
There are internet sites that fabricate custom-sized chimney caps. Mine has a solid lid to keep out rain and a surrounding stainless steel or galvanized grill to keep out animals. I'm sure they could make one that is blanked off, but someone needs to go up on the roof and measure the chimney, allowing a tolerance for fitting. Then fasten the vertical walls of the cap to the chimney.
You will need a cap that drains water to the edges of the cap and outside the chimney.
I take it just shutting the fireplace damper doesn't do it for you?
You will need a cap that drains water to the edges of the cap and outside the chimney.
I take it just shutting the fireplace damper doesn't do it for you?
#7
03-18-15, 07:45 AM
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Do you really want that cold air coming into the house? I know I certainly don't. The only exception would be if the house were extremely tight & you need that outside air for combustion/ventilation.
#8
03-18-15, 07:52 AM
While moisture in the chimney isn't ideal, since it won't be used - there shouldn't be much moisture and as Grady said, eliminating a draft is better than allowing a small amount of moisture. Unless the chimney has rain soaking thru the brick [and then you have bigger problems] I don't think it will be an issue.
