The chimney is layered brick and mortar poorly done im going to attempt to add some mortar but access is very limited and runs interior through.
Exposed chimney in attic wrap with insulation and s s.
This makes it an ideal insulation material for use in areas that experience high temperatures.
Don t compress or flatten the batting.
Find chimney attic insulation shields at lowe s today.
Fiberglass insulation is naturally fire resistant.
Should it be insulated and or airsealed around the ceiling penetration.
As such it can be used to insulate a chimney.
How to insulate a metal flue pipe.
It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of the building.
It reduces the r value.
Stops heat loss into your attic.
Loose insulation fills in around odd shapes and cavities.
Attics and some walls where there s no existing insulation.
I m just looking for some more ammunition for my arguement.
A chimney flue passing through a second floor ceiling into an attic space.
Loose cellulose or fiberglass that s blown into attics.
Wall insulation keeps out cold.
If the chimney is exposed on an outside wall or the stack is particularly tall or the flue is of a large diameter then the answer to the proposed question above is a probable yes.
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This has been a debated topic in my office for a few days now.