- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Attic Insulation ROI
Posted on 7/19/20 at 7:55 pm
Posted on 7/19/20 at 7:55 pm
My house is approximately four years old and has blown in fiberglass insulation. I've done a lot of work in the attic over the years and I need to bring the level up. Should I just go back with fiberglass and blow it in over cellulose? Also what level should I shoot for? I'm luck if if I have 6-8 inches in most places.
6
Posted on 7/19/20 at 8:16 pm to daviddsims
quote:
My house is approximately four years old and has blown in fiberglass insulation. I've done a lot of work in the attic over the years and I need to bring the level up.
4 years old and thinking you need to address the attic insulation? How much “work” have you been doing in the attic?
quote:
Also what level should I shoot for? I'm luck if if I have 6-8 inches in most places.
6” is ~R19, 8” would be just under R30 (~9”). R38 is ~11.5”. Normally you want R30-R38. Fiberglass is a little thicker requirements.
If you want to top it off, I’d suggest just going with blown fiberglass on top of the cellulose.
Posted on 7/20/20 at 7:56 am to daviddsims
i would cap with cellulose as it will improve the R value of the existing fiberglass in addition to the added R value from new cellulose.
Posted on 7/20/20 at 8:33 am to daviddsims
quote:
My house is approximately four years old and has blown in fiberglass insulation.
quote:
Should I just go back with fiberglass and blow it in over cellulose?
What do you have fiberglass or cellulose?
Posted on 7/20/20 at 8:55 am to WPBTiger
Sorry I currently have blown in fiberglass. I had read that covering with cellulose might be a good option.
Posted on 7/20/20 at 11:35 am to daviddsims
my friend bought new windows and did spray insulation and it halved her entergy bills year round
Posted on 7/20/20 at 12:02 pm to daviddsims
I'm pretty curious about this as well. I have a 20 year old AC that is original to our house and has a leak that has required topping off seasonally over the past few years. I anticipate replacing the unit come fall so that I can stop worrying about it's inevitable death and cyclical under-performance.
I have blown in fiberglass, but I've been up and around all parts of the attic over the years doing various upgrades and fixes to stuff. I was considering renting a blower and adding a nice new layer around the same time as getting the AC upgraded.
I notice things that I wonder if I should address. Our patio and porch areas under the roof are not insulated at all for instance. Not sure if that is standard or cost cutting when they built.
I've upgraded all my windows over the past few years, and I know my few doors are leaky, but it seems like a thicker layer blown in up there would be a big benefit.
I have blown in fiberglass, but I've been up and around all parts of the attic over the years doing various upgrades and fixes to stuff. I was considering renting a blower and adding a nice new layer around the same time as getting the AC upgraded.
I notice things that I wonder if I should address. Our patio and porch areas under the roof are not insulated at all for instance. Not sure if that is standard or cost cutting when they built.
I've upgraded all my windows over the past few years, and I know my few doors are leaky, but it seems like a thicker layer blown in up there would be a big benefit.
Posted on 7/20/20 at 1:47 pm to RaginCajunz
quote:
Our patio and porch areas under the roof are not insulated at all for instance.
Normal.
Posted on 7/20/20 at 1:52 pm to RaginCajunz
quote:
RaginCajunz
quote:
notice things that I wonder if I should address. Our patio and porch areas under the roof are not insulated at all for instance. Not sure if that is standard or cost cutting when they built.
That’s normal - nothing wrong. Only attic areas over conditioned living areas are insulated - the attic area over porches, patios, open carports, storage areas are not insultated with traditional attic insultation.
I’m in the same boat as you - knowing I need to replace an aging HVAC - and that is a good time to upgrade insulation, seal/reduce house leakage, etc. If you’ve made/will make significant energy saving improvements to the conditioned area building envelope there is a very good likelihood you can downsize the tonnage of your HVAC, which are often oversized to begin with.
Internet search manual J, manual S, and manual D - ideally this should be done on a home to size the HVAC - particularly after energy saving improvements have been made.
Posted on 7/23/20 at 2:08 pm to notsince98
Does it seem like blown in insulation prices have went up lately? Blown in fiberglass is going for 37-40 bucks a bale at HD and Lowes.
Posted on 7/23/20 at 5:59 pm to daviddsims
a radiant barrier might give you more bang for your buck? easy diy.
Crawl space ninja video on radiant barriers
radiant barrier for sale on amazon
Crawl space ninja video on radiant barriers
radiant barrier for sale on amazon
Posted on 7/23/20 at 6:24 pm to rotrain
Interesting...
Posted on 7/23/20 at 10:23 pm to rotrain
Radiant barrier and insulation and seal your penetrations in your ceiling. Soffit vents
Posted on 7/25/20 at 12:06 am to daviddsims
Whirlybirds baw.
Page 1 of 1
Back to top
Follow TigerDroppings for LSU Football News