Howard Winter wrote:

>It's interesting how many different items are being mentioned by Americans that are unheard-of over here - Attic fans, for example!  Do attics have 
>very open venting from the rest of the house, so that that evacuating them causes air to flow up from the house?  Insulation has been a big thing 
>here for quite some time, and the Building Regulations insist on quite high levels of insulation these days.  I've never seen a house with shingles for a 
>roof - slates or tiles are the norm.
>

Howard,

We have a "whole house fan" which is sometimes called an attic fan.  It 
is installed in the attic with a moveable-blade louver (maybe 30 inches 
by 30 inches square) is directly below the fan in the upstairs hallway.  
When turned on, the fan sucks the louver blades open and draws air in 
through open house windows and up through the attic.  If we run this at 
night, it can cool the house considerably.  I crawl up in the attic 
twice a year (spring and fall) to cover/uncover the fan with large bats 
of fiberglass insulation.

Aaron
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