Fiberglass chimney separation...

[john]

I have a masonry chimney. A wood framed wall covered with drywall butts up against the side of the chimney. I can see that the wood members were held back 3" from the chimney (Code states 2" to combustibles). Can that space be filled with unfaced fiberglass insulation???

[Roger]

You might ask this question of your local planning and zoning department.

[John Galbreath]

No, must be an air space. Can be sheet metal stopped at the floor and ceiling.