Results 1 to 9 of 9
  1. #1
    Join Date
    Aug 2007
    Location
    Atlanta, Ga
    Posts
    213

    Reversing a PAV with ridge vents

    Has anyone given thought on reversing a PAV if your house has ridge vents? This will eliminate the negative pressure in the home and even on hot days bring in "Cooler" air. Then the passive flow of the ridge vents will evacuate the air up thru the roof line. Thoughts?

    Joe

  2. #2
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Maybe if you state what a PAV is.......
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  3. #3
    Join Date
    Jan 2008
    Posts
    89
    Powered Attic Ventilator.

    And no, thats generally going to be a bad idea. You're going to get hot dusty attic air forced down into the home.

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,120
    As above. If running a PAV puts your house into a neg pressure, then running it as a intake will pressurize your home with hot humid unconditioned air.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,876
    If your PAV pulls your house into a negative pressure, don't you have other issues to worry about?
    I need a new signature.....

  6. #6
    Join Date
    Aug 2007
    Location
    Atlanta, Ga
    Posts
    213
    Well, it was a thought....did not think it would fly, but had to ask....Have 2 PAV's in the attic disconnected, I guess they will stay that way....

    For Sale: 2 slightly used PAV's ....best offer...

  7. #7
    Join Date
    Feb 2008
    Location
    Tennessee
    Posts
    91
    ridge vent is a passive system, that's why it works the best.

  8. #8
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    6,451
    The solution is obvious. One sucks while the other blows. Called balanced ventilation. That was easy. Regards TB
    Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
    Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
    Use +Merv 10 air filter. -Don't forget the "Golden Rule"

  9. #9
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    might help keep rain out of roof vents --
    BUT, might bring rain thru PAV --
    -- unless 'hat' of pav has large diam [ say, that of those of 1970s ] or has a 'skirt' around the outer edge of 'hat'
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

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