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-   -   Insulation on Basement Celing (http://www.diychatroom.com/f103/insulation-basement-celing-170356/)

Amitabh 01-28-2013 10:28 AM

Insulation on Basement Celing
 
2 Attachment(s)
Hello

As you see in the second picture, a natural gas pipeline going through a hole in the subfloor connecting to my natural gas fireplace on the main floor. Could i use Roxul (safensound) insulation to cover the hole? just use the one batt to cover the entire section between the two joists?

Also, could i use the same thing and stuff it behind and below the fireplace, (below the firebox, itself, in the space that the natural gas pipeline goes through. (first picture)

thanx for your help in advance

PTMD

Gary in WA 01-28-2013 09:01 PM

Do you require an outside air source for combustion, did you check with manufacturer on insulation guidelines?

Gary

Amitabh 01-29-2013 08:27 AM

i dont think so, the ignition (or spark area) is contained within the firebox and the firebox itself has a direct vented system (double barrel - exhaust in the middle barrel and intake on the outside).

Gary in WA 01-29-2013 10:53 PM

Air-seal the holes in the metal with metal plates and rubber grommet to allow movement in case of seismic zone, canned foam the OSB flooring hole on the protective sleeve only, keep any clearance to insulation required by stove manufacturer. Nothing inside the f.p. housing. I'd change out the f.g. on the rims for rigid foam/canned foam to stop the air infiltration/exfiltration; http://www.diychatroom.com/f103/insu...-edges-168849/

Gary

Amitabh 01-30-2013 08:42 AM

thank you, but what are the acronyms you are using? f.p. f.g.

brockmiera 01-30-2013 02:14 PM

Quote:

Originally Posted by Amitabh (Post 1105559)
thank you, but what are the acronyms you are using? f.p. f.g.

Fire Place

Fiber Glass


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