[Strawbale] 5 perms / no ventilation; and top-of-wall (Mark Piepkorn)

[Rob Tom]

On Mon, 12 Mar 2007 16:23:12 -0400, Rob Tom <ArchiLogic at yahoo.ca>  
too-hastily wrote:


> But the same situation shouldn't exist at the top plate of a SB wall  
> assembly.
>
> I understand that there might be concern about inablity to dry inwards  
> but the concern at that point is more about bulk moisture transport via  
> air-leakage from conditioned interiors than it is about wet walls  
> needing to be allowed to dry out.

What Stronzo di Nord neglected to mention was that the above situation  
applies only to a predominantly heating climate like that which Duck Foo'd  
was referring to initially.

In predominantly cooling climates, air leakage would tend to be from the  
outside-in at the top plate wall/ceiling junction but the outside/inside  
differences in temp & humidity  (and hence the concerns WRT)  aren't as  
great in that situation.

=== * ===
Rob Tom
Kanata, Ontario, Canada
<A r c h i L o g i c   at  c h a f f y a h o o   dot   c a >
winnow the chaff from my edress in your reply