Flue Chase

The flue and vent chase is partially covered with a type of foam, very dry and falls apart when handled. Home built in 1973, have no idea what the builder was trying to accomplish. I will note in the report that this material is a potentially combustable and should be removed. The chase needs to be sealed in the attic also. Any thoughts? :slight_smile:

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Looks like UFFI (urea-formaldehyde foam insulation) that was popular in the late 70’s-early 80’s.

Definitely needs to be removed.

Must have figured he was conserving heat.

Agree, it looks like it was sprayed on the wall and collapsed.

You don’t want that pipe to get cold