Insulation on Basement Celing

Amitabh · 01-28-2013, 11:28 AM

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, 10:01 PM

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

Gary

Amitabh · 01-29-2013, 09:27 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, 11:53 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; Insulating Rim Joist - caulk or spray foam around edges?

Gary

Amitabh · 01-30-2013, 09:42 AM

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

brockmiera · 01-30-2013, 03:14 PM

Quote:

Originally Posted by Amitabh

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

Fire Place

Fiber Glass

01-28-2013, 11:28 AM	#1
Amitabh Member Join Date: Nov 2012 Location: Toronto, Canada Posts: 71	Insulation on Basement Celing 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 Attached Thumbnails Attached Images

01-28-2013, 10:01 PM	#2
Gary in WA Moderator Join Date: Mar 2009 Posts: 8,843	Insulation on Basement Celing Do you require an outside air source for combustion, did you check with manufacturer on insulation guidelines? Gary __________________ Clothes taking longer to dry? Clean the dryer screen in HOT water if using fabric softener sheets. They leave a residue that impedes air-flow, costing you money. Clean the ducting in the last six months? 17,000 dryer fires annually!

01-29-2013, 09:27 AM	#3
Amitabh Member Join Date: Nov 2012 Location: Toronto, Canada Posts: 71	Insulation on Basement Celing 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).

01-29-2013, 11:53 PM	#4
Gary in WA Moderator Join Date: Mar 2009 Posts: 8,843	Insulation on Basement Celing 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; Insulating Rim Joist - caulk or spray foam around edges? Gary __________________ Clothes taking longer to dry? Clean the dryer screen in HOT water if using fabric softener sheets. They leave a residue that impedes air-flow, costing you money. Clean the ducting in the last six months? 17,000 dryer fires annually!

01-30-2013, 09:42 AM	#5
Amitabh Member Join Date: Nov 2012 Location: Toronto, Canada Posts: 71	Insulation on Basement Celing thank you, but what are the acronyms you are using? f.p. f.g.

Insulation on Basement Celing