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Posted by CJT on May 31, 2006, 8:23 pm
SQLit wrote:
>
>>wrote:
>>
>>
>>>our house in the Nashville area has a huge (cubic feet) attic that is
>>>hotter then hell. There are 8 of what I call 'passive' vents mounted
>>>near the peak, and plenty of soffet vents. Even so, there is
>>>absolutely NO air flow. During the hot summer days, the few metal
>>>shelves I have in there are HOT to the touch. So the attic is
>>>absolutely useless as storage space for anything but the heartiest
>>>items.
>>>
>>>My plan is to replace 2 of the vents w/ those mushroom-shaped powered
>>>vents, one on each end of the roof line, and block off the remaining
>>>passive vents from the underside w/ a thin piece of plywood.I figure
>>>this would force air to come in through the soffet vents and move all
>>>that hot air out.
>>>
>>>does that sound reasonable, and do any of you experts see a problem w/
>>>that?
>>>I mean blocking off the remaining vents should suffice, right, or do I
>>>have to remove them and re-roof?
>>>
>>>and can you believe that the dumb assed builder actually mounted some
>>>of the vents so they cut across a rafter??? Lucky for me there are a
>>>couple where the hole is completely between two rafters, or I'd have a
>>>heck of a time mounting new vents.
>>>
>>>thanks,
>>>steve
>>
>>
>>You will increase your energy consumption with powered fans, but it
>>will work. Don't block the existing vents, you can't have too many
>>vents. It will take time, but consider planting some shade trees on
>>the south or south-west side of the house.
>
>
> I agree with the increased electrical usage.
> I disagree that fans will provide any great difference in temp. Unless your
> moving > 6000 cfm through the attic. Huge area says to me large roof area.
> Really no way stop the sun from shining.
>
> Spend your money on more insulation and a pro to check out the units.
>
>
I'm a firm believer that gable fans are effective. Eventually I hope to
be able to prove that quantitatively -- I've been adding instrumentation
to my house to log temperatures, energy consumption, etc. It's a work
in progress at this point, though.
--
The e-mail address in our reply-to line is reversed in an attempt to
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