Which Way to Face Soffit Eave Vents?

By: Danny Lipford

What direction should the fins face on soffit vents – toward or away from the house? -Don

Hi Don,

Soffit vents are installed under the overhang in the eaves (known as the soffit) to allow cool, outside air in the attic to reduce the temperature. Since warm air rises, outside air is drawn in the soffit vents – and exits near the peak of the roof through ridge, gable, or roof vents – to provide natural air circulation through the attic.

It’s best to install soffit vents with the open part of the louver facing in toward the house to keep windblown debris out of the attic and prevent water from coming in when the eaves are cleaned with a garden hose or pressure washer. In addition, facing the vent fins in provides a more attractive exterior appearance for your house, since you can’t see into the attic from outside.

Because most attic ventilation is passive and low volume, you’re not hindering air movement by facing the fins toward the house. If your attic uses a power vent to help cool the attic, it will work fine with the fins facing in as well.

Good luck with your project,

Danny

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3 Comments on “Which Way to Face Soffit Eave Vents?”

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  • Caroline stone Says:
    November 6th, 2015 at 6:50 am

    I have a louvred wooden vent in the front wall of my attic, do I need soffit vents? The roofing company covered the vents of the wall above a lower roof on either side of the chimney at the rear of the house when they replaced the flat roof over a deck. Said I didn’t need vents as it is a summer residence. Do I need soffit vents or not? Would appreciate comments and advice.



  • DENNY Says:
    September 15th, 2015 at 10:39 am

    I HAVE VYNEL SOFFTETS NOW THAT SOME HAVE VENT HOLES IN THEM I HAD A NEW ROOF DONE LAST YEAR AND THEY SAID IT NEEDS MORE VENTALTION HOW AND WHAT KIND OF VENTS DO I NEED TO INSTALL IN THE VYNEL SOFETTS THAT IS THERE NOW



  • Karlyn Says:
    November 10th, 2013 at 11:57 am

    We built our house around an old barn silo which encloses our foyer. We have a severe leaking ceiling during SOME rainstorms from the ceiling on the second floor where the silo meets the front face of the house. Whether it leaks or not seems to depend on the direction of the wind and is usually during a very windy storm. We have had all stone work repaired, have a fairly new roof and have had 3 roofing companies out to look at the problem. They see no roofing problem that would promote leaking. The soffit is vented along the full length of the roof. Is it possible that during a rain storm that strong winds from a certain direction could “wrap around” the silo and suck rain up into the attic? We are thinking of replacing 6 feet or so of the soffit adjacent to the silo with unvented soffit. I would appreciate hearing your comments. Thank you. Karlyn


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