Insulation: Blown Cellulose Vs. Fiberglass

We take a look at a house that has both blown cellulose and fiberglass insulation.

Category:

Howto & Style

Tags:

• Blown
• Cellulose
• Insulation
• Owner
• Builder
• construction
• build
• your
• own
• home
• ownerbuilderonline

[coast2co]

This Video is misrepresenting concerning Fiberglass. Should I say misleading people. If you install the Blow In Blanket method with Fiberglass it eliminates all air from the cavity as well., Plus the R Value is greater with Fiberglass in BIBS Blow In Blanket method. Research it.

[arossona]

@coast2co I think its important to note blown fiberglass is another good product that can fill the cavity fully. I didn't think that I ever said anything close to "blown fiberglass is no good." Did I? My point was, and still is that the use of blown cellulose vs fiberglass batts is advantageous. You get a fuller cavity and less gaps and voids using cellulose than with fiberglass batts. There is nothing misleading about the video. I would advocate using blown fiberglass over batts any day.

[arossona]

@coast2co I wholeheartedly agree that research is critical when making an insulation choice. I have never used blown fiberglass and cannot say that it's performance is better or worse that cellulose. I haven't even compared the price point. Check with your insulation professional when bidding out your home. Ask for their recommendations and reasons to go one way or the other.

[zipacna1980]

Where is a vapour barrier?

[arossona]

@zipacna1980 No vapor barrier is put on the interior. Because the exterior is wrapped and stuccoed and sometimes even sheared, if the interior had a vapor barrier it would lead to potential moisture trap in the walls, there would be no indication on the sheetrock because they would be seperated from the moisture. it could spread unnoticed for months or years and really be a problem.

[zzhamstring]

@arossona To me you sound knowledgable with what you're talking about. I have a question to ask?

I'm new homeowner of townhouse condo and I paid a visit to my attic and notice that I have cellulose insulation on a flat floor with no joists.From that draft that i felt it appears that my roof is not well sealed from the inside. Now if I go into the attic to try to cauk, I'll be stirring up the celliulose.What are my options?

[luvthisoldhome]

i did a fair amount of research and decided to go with blown fiberglass for my home. i saw some things online that made me go this route. 1. cellulose is shredded paper- with an old wood home not going this route. 2. cellulose will retain water, so if you ever have a leak you will have soggy, wet, molding paper 3. cellulose could have ink and possibly mold from the start 3. cellulose if ever gets wet could lose its fire proof properties.

blown fiberglass- for me!

[dancerbabe1978]

these comments show that you'll never get the same answer to the same question.

[Booyaa00777]

For a sound barrier home, use blown-in cellulose. You give up a lot in energy efficiency/costs. Blown-in fiberglass is the most energy efficient and best of the two. Fiberglass is much better than 20 years ago. The video of cellulose being burned is true. It's made of compressed paper. Fiberglass will not burn. Cover all exposed electrical outlets in attic such as lights. Ceiling fans only need to be caulked for leaks. Johns Manville is best over Owens Corning. Any other brand, save your money.

[cotequadsport]

good job with this video. that fiberglass always has gaps and also allow airs to move threw it.

[VerumAdNauseam]

Fiberglass is torture, I won't bring it anywhere near me.

[hagenar]

ATTENTION, people in northern states, Canada, Sweden etc...

It should be noted that adding an internal vapor barrier is important for colder climates. Builders should check local codes and standards before following arosonna's advice to omit it.

In areas that experience real winter, a well sealed internal 6 mil plastic barrier will help stop your wall cavities from turning moldy and soggy. A breathable wrap is still ideal for the outside.

[AmberIsSeXXXy]

@cotequadsport Stop acting like you know what you're talking about, faggot.