[Greenbuilding] New HVAC unit

[Bobbi Chukran]

Thanks, Bill.  I'm a bit behind in my mail, too, since we've been  
commuting to and from the new/old house and have been working there  
12-hours a day in the 94-degree heat.  I deserve sainthood for that!   
LOL

Good point about the insulation.  I don't know if there's any kind of  
moisture barrier under the siding or not.  Did they use tar paper,  
etc. back in 1930?  We've found very little water damage to the  
house, so far, amazingly enough, so we're hoping that the walls are  
in good shape.  I think we'll end up using a combination of  
insulations...maybe fiberglas in the walls, cellulose or spray foam  
in the ceiling and underneath the house.

Every window is covered by a sturdy awning, and I'm sure that's kept  
the windows and walls in very good shape.

It did occur to me to wonder how much insulation value we get from  
the existing walls.  They are thick from the "sandwich" of wallboard,  
planks, studs, planks, wooden siding and alum. siding.

bobbi c.

On Jun 3, 2011, at 8:02 AM, bilrob at silcom.com wrote:
> If the walls are wet or even if there is not an adequate moisture  
> barrier there is significant risk of more damage form moisture as  
> it is held in the walls by the cellulose. Fiberglass is much better  
> for this if there is risk of moisture intrusion.>