# roof vs. fresh air ducts

**URL:** <https://forum.nachi.org/t/roof-vs-fresh-air-ducts/12804>\
**Category:** Exterior Inspections\
**Created:** [February 8, 2007, 6:21am UTC](https://forum.nachi.org/t/roof-vs-fresh-air-ducts/12804 "2007-02-08T06:21:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fran\_Walters](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Fran\_Walters](https://forum.nachi.org/u/Fran_Walters)\
**Post date:** [February 8, 2007, 6:21am UTC](https://forum.nachi.org/t/roof-vs-fresh-air-ducts/12804/1 "2007-02-08T06:21:19Z")

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is there any problem with having fresh air ducts 2 to 3 feet off the roofline, this being a mold resistant asphalt roof?

will the fresh air ducts suck up anything negative from the roofing material? thank you.

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**Author:** ![wsiegel](https://avatars.discourse-cdn.com/v4/letter/w/3d9bf3/32.png) [@wsiegel](https://forum.nachi.org/u/wsiegel)\
**Post date:** [February 8, 2007, 12:08pm UTC](https://forum.nachi.org/t/roof-vs-fresh-air-ducts/12804/2 "2007-02-08T12:08:30Z")

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any pictures?

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**Author:** ![dvalley](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/dvalley/32/206092_2.png) [@dvalley](https://forum.nachi.org/u/dvalley)\
**Post date:** [February 10, 2007, 11:54am UTC](https://forum.nachi.org/t/roof-vs-fresh-air-ducts/12804/3 "2007-02-10T11:54:34Z")

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Please emphasize “fresh air ducts”.