[Greenbuilding] overhead cellulose dense pack?`

[Drew A. Gillett, P.E.]

why insulate the ceiling rather than the exterior walls inside or out?

the walls should be much easier, dont involve as many penetrations, avoids 
the rewiring, and as a bonus you get insulated heatable basement space and a 
warm floor.

ps knob and tube works great given how many old bldgs it is still in. it 
does rely to some exrent on air coolingaround the wires, but so do romex , 
etc.


----- Original Message ----- 
From: "Reuben Deumling" <9watts at gmail.com>
To: "Greenbuilder list" <GREENBUILDING at listserv.repp.org>
Sent: Tuesday, April 03, 2007 7:08 PM
Subject: [Greenbuilding] overhead cellulose dense pack?`


>I would like to insulate my basement ceiling with cellulose (600 square 
>feet
> approximately). The joists are 2x8s spaced not very evenly which is one of
> the main reasons I'm tempted to blow in the insulation. I will be redoing
> the knob and tube wiring first and plan to get some of the plumbing
> relocated to where it is more accessible before tackling this.
>
> (1) Is it advised to tack up a mesh/screen first and blow dry cellulose
> behind/above/through this? Or better to damp spray? And if so, is the mesh
> still a good idea?
>
> (2) For various reasons I don't plan to cover the insulation with 
> sheetrock
> for a year or so after insulating . Is this fine? Does it impact (1) 
> above?
>
> Thanks
>
> Reuben Deumling
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