I'm plannig to insulate the outside wall and a half of the garage and
I'm wonderring if a vapor barrier is really needed. between the two
doors and all the opening and closing, there's plenty of air exchange
and the outside is already covered with house wrap, and I wouldn't
really get any air infiltration benefits. So I'm thinking, "What's
the point?"
--
A: No. See: Help, I'm
<http://www.netmeister.org/news/learn2quote.html> being held
<http://www.greenend.org.uk/rjk/2000/06/14/quoting> in a .sig
Q: Should I include quotations after my reply? factory!
You and your cars produce moisture, not to mention your washer/dryer if
they're out there.
If you're loose as a goose, no problem, but if the doors are fairly tight,
moisture might work into batt insulation.
"A Dog Named Stain" <[email protected]> wrote in message
news:[email protected]...
>
> "Keep it to Usenet please" <[email protected]> wrote in
> message news:[email protected]...
> > I'm plannig to insulate the outside wall and a half of the garage and
> > I'm wonderring if a vapor barrier is really needed. between the two
> > doors and all the opening and closing, there's plenty of air exchange
> > and the outside is already covered with house wrap, and I wouldn't
> > really get any air infiltration benefits. So I'm thinking, "What's
> > the point?"
>
>
> Yes you should. The vapor barrier will keep any moisture away from the
> insulation
>
>
In areas that get cold, such as where I am, snow, rain and road slush keep
the floor in the garage wet most of winter, this can keep the interior
humidity at a very high level and this can penetrate the insulation or
condense on the inside of the outside walls. Install the vapour barrier, it
won't do you any harm, only good.
"Keep it to Usenet please" <[email protected]> wrote in message
news:[email protected]...
> I'm plannig to insulate the outside wall and a half of the garage and
> I'm wonderring if a vapor barrier is really needed. between the two
> doors and all the opening and closing, there's plenty of air exchange
> and the outside is already covered with house wrap, and I wouldn't
> really get any air infiltration benefits. So I'm thinking, "What's
> the point?"
>
> --
> A: No. See:
Help, I'm
> <http://www.netmeister.org/news/learn2quote.html> being
held
> <http://www.greenend.org.uk/rjk/2000/06/14/quoting> in a
.sig
> Q: Should I include quotations after my reply?
factory!
ALWAYS put a moisture brrier under ant concrete. Don't be TOO cheap;
you'll hurt yourself.
On Wed, 12 Nov 2003 20:23:22 GMT, Keep it to Usenet please
<[email protected]> wrote:
>I'm plannig to insulate the outside wall and a half of the garage and
>I'm wonderring if a vapor barrier is really needed. between the two
>doors and all the opening and closing, there's plenty of air exchange
>and the outside is already covered with house wrap, and I wouldn't
>really get any air infiltration benefits. So I'm thinking, "What's
>the point?"
"Keep it to Usenet please" <[email protected]> wrote in message
news:[email protected]...
> I'm plannig to insulate the outside wall and a half of the garage and
> I'm wonderring if a vapor barrier is really needed. between the two
> doors and all the opening and closing, there's plenty of air exchange
> and the outside is already covered with house wrap, and I wouldn't
> really get any air infiltration benefits. So I'm thinking, "What's
> the point?"
I thought the same thing. I bought a roll of poly barrier for about $20
that will do my entire garage and have some left over. For the small amount
of money involved and the even less amount of labor to staple it up, why
take a chance?
I'm not done yet, but my shop is better than it was last year already. The
insulation made a huge difference on the 25 degree days we have had so far.
Ed
> >
> >Basically because it's the exterior walls of a garage and I'm using
> >plywood instead of drywall, so I wanted it glued and screwed to the
> >studs and I think construction adhesive over plastic will be pretty
> >pointless.
>
Use a full vapor barrier. All 6 surfaces, walls, floor and ceiling.
seal openings. Skip the glue, no need for it. If the floor is a slab
with no vapor barrier underneath you may need to apply a vapor barrier
finish. Plywood is ok but you should consider drywall over it (or
under it if you don't need the shear) for the fire protection. It may
be required by code anyway at least between the house and garage. And
the added mass adds a bit of sound deadening. Besides it cheap.
Mike
On Thu, 13 Nov 2003 18:59:47 GMT, Keep it to Usenet please
<[email protected]> brought forth from the murky depths:
>In article <[email protected]>,
> Larry Jaques <jake@di\/ersify.com> wrote:
>
>> Why NOT use it?
>
>Basically because it's the exterior walls of a garage and I'm using
>plywood instead of drywall, so I wanted it glued and screwed to the
>studs and I think construction adhesive over plastic will be pretty
>pointless.
Why glued and screwed? In any case, you could use the
foil-faced insulation tacked to the inside of the studs
if you must g&s unless you don't care if the studs rot.
-------------------------------------------------
- Boldly going - * Wondrous Website Design
- nowhere. - * http://www.diversify.com
-------------------------------------------------
In article <[email protected]>,
Larry Jaques <jake@di\/ersify.com> wrote:
> Why NOT use it?
Basically because it's the exterior walls of a garage and I'm using
plywood instead of drywall, so I wanted it glued and screwed to the
studs and I think construction adhesive over plastic will be pretty
pointless.
--
A: No. See: Help, I'm
<http://www.netmeister.org/news/learn2quote.html> being held
<http://www.greenend.org.uk/rjk/2000/06/14/quoting> in a .sig
Q: Should I include quotations after my reply? factory!
"Keep it to Usenet please" <[email protected]> wrote in
message news:[email protected]...
> I'm plannig to insulate the outside wall and a half of the garage and
> I'm wonderring if a vapor barrier is really needed. between the two
> doors and all the opening and closing, there's plenty of air exchange
> and the outside is already covered with house wrap, and I wouldn't
> really get any air infiltration benefits. So I'm thinking, "What's
> the point?"
Yes you should. The vapor barrier will keep any moisture away from the
insulation
On Wed, 12 Nov 2003 20:23:22 GMT, Keep it to Usenet please
<[email protected]> brought forth from the murky depths:
>I'm plannig to insulate the outside wall and a half of the garage and
>I'm wonderring if a vapor barrier is really needed. between the two
>doors and all the opening and closing, there's plenty of air exchange
>and the outside is already covered with house wrap, and I wouldn't
>really get any air infiltration benefits. So I'm thinking, "What's
>the point?"
If you're getting the inside warm while the outside stays
cold, yes, you probably need a vapor barrier. The walls and
insulation will get wet every time the dew point drops, 365
times a year. More with open/closed doors, heatups/cooldowns.
It will keep your insulation from degrading so it pays for
itself. It's cheap (I just got a 10x25' clear plastic sheet
for $2.99) and easy to put up. Why NOT use it?
P.S: It goes INSIDE, between the sheetrock and the insulation,
to keep the warm, moist air inside.
-------------------------------------------------------------
* * Humorous T-shirts Online
* Norm's Got Strings * Wondrous Website Design
* * http://www.diversify.com
-------------------------------------------------------------
On Thu, 13 Nov 2003 05:35:44 GMT, Larry Jaques <jake@di> wrote:
> On Wed, 12 Nov 2003 20:23:22 GMT, Keep it to Usenet please
><[email protected]> brought forth from the murky depths:
>
>>I'm plannig to insulate the outside wall and a half of the garage and
>>I'm wonderring if a vapor barrier is really needed. between the two
>>doors and all the opening and closing, there's plenty of air exchange
>>and the outside is already covered with house wrap, and I wouldn't
>>really get any air infiltration benefits. So I'm thinking, "What's
>>the point?"
>
> If you're getting the inside warm while the outside stays
> cold, yes, you probably need a vapor barrier. The walls and
> insulation will get wet every time the dew point drops, 365
> times a year. More with open/closed doors, heatups/cooldowns.
> It will keep your insulation from degrading so it pays for
> itself. It's cheap (I just got a 10x25' clear plastic sheet
> for $2.99) and easy to put up. Why NOT use it?
>
Check the Building Science Consortium. They have specific
recommendations for every region of the country.
http://www.buildingscience.com
"Keep it to Usenet please" <[email protected]> wrote in message
news:[email protected]...
> I'm plannig to insulate the outside wall and a half of the garage and
> I'm wonderring if a vapor barrier is really needed. between the two
> doors and all the opening and closing, there's plenty of air exchange
> and the outside is already covered with house wrap, and I wouldn't
> really get any air infiltration benefits. So I'm thinking, "What's
> the point?"
The point is, what will it hurt if you do use a vapor barrier?
If you ever plan on heating the garage, it will be important. Should you
never heat it, the vapor barrier will prevent you from coming into contact
with the fiberglass insulation.
But what do I know, I just peddle lumber...
Woodsy