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  1. #1
    Join Date
    Oct 2003
    Posts
    28
    Are there any benefits or pitfalls as a result of using fireproof insulation around the portion of the masonary chimney that passes through the unheated attic? The central chimney is in a saltbox colonial with three flues. One for each fireplace and one for the orphaned waterheater (properly sized using the rule of 7's).

  2. #2
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    post this in fireplace forum --

    probably not, most masonry chimmey's are cool -- they must be separated from any wood | combustables --
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

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