 |
08-07-2012, 03:38 PM
|
#1
|
|
Newbie
Join Date: Aug 2012
Posts: 2
|
Outside wall insulation
Just bought a house. I removed the paneling in the den and was about to sheet rock. While I have the wall open I was debating if I should replace the current insulation on the outside facing wall. Currently, there is R7 in the wall. The house was built in 1970. That and the fact that I can't find many references to R7 insulation is making me think I should replace it. I live in NJ, just outside Philadelphia. Any feedback would be great. Thanks!
|
|
|
Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. DIYChatroom.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any home improvement task!
|
08-07-2012, 04:04 PM
|
#2
|
|
Member
Join Date: Nov 2011
Location: Hartfield VA
Posts: 18,101
|
Outside wall insulation
How much insulation and what type will depend on what size studs you have and what your budget will allow.
If it's 2 X 4's then you can use fiberglass batts R-13, is it's 2 X 6's then R19.
For more R value you can get it spray foamed.
It's important while the wall is opened up any way to air seal all holes where wiring or plumbing as run and along the top and bottom plates.
|
|
|
|
The Following User Says Thank You to joecaption For This Useful Post:
|
|
|
08-08-2012, 08:30 AM
|
#3
|
|
Exterior Construction
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 3,493
|
Outside wall insulation
+1
Use high density batts as well.
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
|
|
|
|
08-08-2012, 10:41 PM
|
#4
|
|
Member
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 1,788
|
Outside wall insulation
i was at menards today. they have R-13 batts for $25 for 107sf. and r-15 batts for $45 for 60ish sf. is this worth the extra money ?
__________________
DIY'er, out of necessity. if i did this for a living, i would make about $3.50 an hour
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
i didn't make this world. i just live in it.
be careful of whom you make fun of. one day, that could be you...
|
|
|
|
|
08-09-2012, 01:12 AM
|
#5
|
|
Moderator
Join Date: Mar 2009
Posts: 8,765
|
Outside wall insulation
To help you decide; R-13 (medium density- no convective loops inherent) is R-19 (low-density with c.l.'s) only cost more due to compressing it down to 3-1/2" with more resins to keep it there. It has 40% more material than older R-11 (unavailable now due to meeting minimum code), R-15 (high-density- no c.l.'s) has 180% more material than R-11. Spend the money, for your location.
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!
|
|
|
|
|
The Following User Says Thank You to Gary in WA For This Useful Post:
|
|
|
08-09-2012, 12:13 PM
|
#6
|
|
Newbie
Join Date: Aug 2012
Posts: 2
|
Outside wall insulation
Thanks for the input. My budget is that of someone that just bought a house... Non existant... 
I have the 2 x 4's so I went with the R13.
But I'm glad I decided to remove everything and put new insulation in. After removing the old stuff, I found myself looking down at my grass in a few spots... Not to mention the previous cable installer apparently drilled 2 holes in the side of the house and neglected to fill one of them. So I've repaired the holes and sealed everywhere I can. I will be going around the entire perimeter next and making sure any gaps are sealed as well. Let's hope my energy bill thanks me for it!
|
|
|
|
|
08-09-2012, 09:47 PM
|
#7
|
|
Member
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 1,788
|
Outside wall insulation
Quote:
Originally Posted by GBR in WA
To help you decide; R-13 (medium density- no convective loops inherent) is R-19 (low-density with c.l.'s) only cost more due to compressing it down to 3-1/2" with more resins to keep it there. It has 40% more material than older R-11 (unavailable now due to meeting minimum code), R-15 (high-density- no c.l.'s) has 180% more material than R-11. Spend the money, for your location.
Gary
|
thanx Gary. i did(i bought 1 bail), and will continue to, spend the money.
i was actually looking for mineral wool, but they didn't have 16"oc stuff.
__________________
DIY'er, out of necessity. if i did this for a living, i would make about $3.50 an hour
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
i didn't make this world. i just live in it.
be careful of whom you make fun of. one day, that could be you...
|
|
|
|
|
08-10-2012, 04:49 PM
|
#8
|
|
Moderator
Join Date: Mar 2009
Posts: 8,765
|
Outside wall insulation
Yes, if you have/want/need/can only due to cost go with fiberglass...may as well get the best to have the second best of the lowest quality material. It is the easiest to install wrong: http://www.advancedinsulationinc.com...Insulation.pdf
You're welcome!
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!
|
|
|
|
|
The Following User Says Thank You to Gary in WA For This Useful Post:
|
|
|
08-11-2012, 09:57 AM
|
#9
|
|
Member
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 1,788
|
Outside wall insulation
well, it looks like i have to return my batts. i bought paper faced. gotta get unfaced. but that is ok, as unfaced is less expensive.
__________________
DIY'er, out of necessity. if i did this for a living, i would make about $3.50 an hour
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
i didn't make this world. i just live in it.
be careful of whom you make fun of. one day, that could be you...
|
|
|
|
|
08-12-2012, 10:01 PM
|
#10
|
|
Member
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 1,788
|
Outside wall insulation
i did some work today. i just happen to have a bail of mineral wool laying around. i wasn't planning on using it. but i thought, "if i don't use it now, when will i use it ?", so i used it. this stuff is quit dense. i am going to finish this room, our new bedroom, with this. but the rest of the house will be with fiberglass = $$$
one issue i do have with it. is that it bulges out of the cavity a little bit. idk if that will make the drywall bulge ?
__________________
DIY'er, out of necessity. if i did this for a living, i would make about $3.50 an hour
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
i didn't make this world. i just live in it.
be careful of whom you make fun of. one day, that could be you...
|
|
|
|
|
08-16-2012, 12:22 AM
|
#11
|
|
Moderator
Join Date: Mar 2009
Posts: 8,765
|
Outside wall insulation
Should be fine, you want full contact to drywall for no convective loops with any type cavity filler insulation.
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!
|
|
|
|
-->
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
