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Re: Covering fiberglass insulation in attic?

To: Shop Talk <shop-talk@autox.team.net>
Subject: Re: Covering fiberglass insulation in attic?
From: James Babcock <jbabcoc@yahoo.com>
Date: Wed, 16 Feb 2000 08:31:59 -0800 (PST)
Sorry for the late reply...just getting caught up with these mails.
A good resource for insulation facts is http://www.naima.org

--- Phil Ethier <pethier@isd.net> wrote:
> 
> 
> -----Original Message-----
> From: Mike Lee - Team Banana Racing <mikel@ichips.intel.com>
> To: Shop Talk <shop-talk@autox.team.net>
> Date: Tuesday, February 08, 2000 6:53 PM
> Subject: Re: Covering fiberglass insulation in attic?

> Staple up fiberglass insulation from below.  I used stuff with kraft paper
> because that was available and the paper made it easy to staple.  Remember
> that the kraft paper goes towards the warm side.
> 
> Have you insulated the walls?  This is a good time.
> 
> Staple up poly sheet for a vapor barrier separating the heated area from the
> insulation.  About twenty bucks worth of 6-mil covered the entire inside of
> my 20x30 shop.  Get the clear stuff, not the black stuff.  It is much easier
> to see what you are doing.

It's really not necessary to use plastic if you use kraft paper backed
fiberglas.  The kraft paper is there to be a vapor barrier.  It's important
to overlap the edges carefully to get a good seal.  Putting up a double
vapor barrier will accumulate moisure between the layers.


> It sounds
> >as though putting up plastic sheeting to cover the fiberglass is generally
> a no-no,
> >and likely some sort of fire code violation, but the kraft paper sounds
> like a good
> >idea;
> 
> Explain to me why poly is a fire-code violation and kraft paper is not.

Both are fire code violations.

> >Mike
> 
> Phil Ethier    Saint Paul  Minnesota  USA
> 1970 Lotus Europa, 1992 Saturn SL2, 1986 Chev Suburban
> LOON, MAC
> pethier@isd.net     http://www.visi.com/mac/


=====
James A. Babcock, Software Engineer      (jbabcoc@yahoo.com)
Realtime Embedded Systems Specialist   pager: (703) 706-8722
'80 Triumph TR7                        '87 Dodge Dakota 4x4
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