Building and Construction - Blown insulation question

Author

Blown insulation question

Gollum

2006-02-22, 12:21 pm

I need to insulate an older house in NY. Walls and a floor above a
carport.
I am considering cellulose, glass and foam.
Pro's and Con's?
Is the lack of a vapor barrier a major problem?

Any feedback would be greatly appreciated!

TIA
Greg

CWatters

2006-02-22, 8:21 pm

"Gollum" <Gollum@pretty.net> wrote in message
news:4d0pv15qlt621lujj3ll6m9nk4njffu75j@4ax.com...
> I need to insulate an older house in NY. Walls and a floor above a
> carport.
> I am considering cellulose, glass and foam.
> Pro's and Con's?
> Is the lack of a vapor barrier a major problem?
>
> Any feedback would be greatly appreciated!

Keep it away from any downlights.

Al Bundy

2006-02-22, 11:21 pm

Gollum <Gollum@pretty.net> wrote in
news:4d0pv15qlt621lujj3ll6m9nk4njffu75j@4ax.com:

> I need to insulate an older house in NY. Walls and a floor above a
> carport.
> I am considering cellulose, glass and foam.
> Pro's and Con's?
> Is the lack of a vapor barrier a major problem?
>
> Any feedback would be greatly appreciated!
>
> TIA
> Greg

I did an enclosed carport exactly as you mentioned. Used the HD blow-in
Cocoon Insulation. Had lots of obscure cavities in walls - small spots,
oddball widths, etc. (I didn't stud it). Went well, walls and above.
Warm. No drafts. No itching!

Info at: http://www.cocooninsulation.com

Marked spots for blow-in holes while putting up drywall. Also took pics
with digital camera before enclosing for reference.

Machine was free when you bought xx bags of insulation. Make sure they
have the sidewall attachment before starting. I talked to people at
Cocoon. They said when you do the sidewalls use 100ft of hose even if it
is only 20 ft away. It breaks up the insulation better.

Gollum

2006-02-23, 1:21 pm

On Wed, 22 Feb 2006 21:08:58 -0600, Al Bundy <postmaster@127.0.0.1>
wrote:

>Gollum <Gollum@pretty.net> wrote in
>news:4d0pv15qlt621lujj3ll6m9nk4njffu75j@4ax.com:
>
>
>
>I did an enclosed carport exactly as you mentioned. Used the HD blow-in
>Cocoon Insulation. Had lots of obscure cavities in walls - small spots,
>oddball widths, etc. (I didn't stud it). Went well, walls and above.
>Warm. No drafts. No itching!
>
>Info at: http://www.cocooninsulation.com
>
>Marked spots for blow-in holes while putting up drywall. Also took pics
>with digital camera before enclosing for reference.
>
>Machine was free when you bought xx bags of insulation. Make sure they
>have the sidewall attachment before starting. I talked to people at
>Cocoon. They said when you do the sidewalls use 100ft of hose even if it
>is only 20 ft away. It breaks up the insulation better.

Thanks for the reply. Just for my information. If you put up the
drywall, why didn't you put the standard fg batts in at that time?
What did you do for a vapor barrier?

Thanks
Greg

Buck Turgidson

2006-02-23, 2:21 pm

In walls, cellulose might settle over time. I injected foam into some
walls, and it went pretty well. It is more expensive, but has more R
value than cellulose and fg.

Al Bundy

2006-02-24, 1:21 am

Gollum <Gollum@pretty.net> wrote in
news:6lorv1dgf9oo91f1pe6td56d6qum9l73dj@4ax.com:

> On Wed, 22 Feb 2006 21:08:58 -0600, Al Bundy <postmaster@127.0.0.1>
> wrote:
>
>
> Thanks for the reply. Just for my information. If you put up the
> drywall, why didn't you put the standard fg batts in at that time?
> What did you do for a vapor barrier?
>
> Thanks
> Greg

>
> Thanks for the reply. Just for my information. If you put up the
> drywall, why didn't you put the standard fg batts in at that time?

As I said, I didn't stud it. It was hacked. No studs were 16 or 24oc.
without some interference including other studs and the 4x4s from the
carport. Also had 4 windows in it.

> What did you do for a vapor barrier?

Cocoon said not to use a vapor barrier. Outside was T-111, inside drywall
of course.

- but -

The bottom 6-12" or so of the old carport had brick. They did say that
where there was brick, cover that with plastic so there was the brick,
plastic, insulation then drywall.

I'll never know if this worked out in the long run. Finished redoing house
and sold it.

Al Bundy

2006-02-24, 1:21 am

"Buck Turgidson" <jc_va@hotmail.com> wrote in news:6591d3-qsu.ln1
@turf.coleman.com:

> In walls, cellulose might settle over time. I injected foam into some
> walls, and it went pretty well. It is more expensive, but has more R
> value than cellulose and fg.
>
>

> In walls, cellulose might settle over time.

Cocoon said it would. They say when you blow in sidewalls to put a fill
hole a few inches from the top then half way down the wall below it. Fill
the bottom hole first until you can hear the machine "bog" a bit telling
you that it's full and "packed at that point. Then go to the top and fill
till the machine "bogs" again.

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