Replies

1. 
   TRice | Jan 19, 2005 04:53pm | #1

   The builders that told you that a building code allows exhaust to vented anywhere but outside are mistaken. Venting into enclosed spaces, attics, etc., are a sign of corners cut and/or willful disregard for good practice and acceptable buiding codes.

   You can put a grille in the soffit if it is directly ducted to the fan. It will look like whatever you buy. Aluminum is more expensive than stamped steel.

   If the roof is a shed type where the "top" is at the next floor exterior wall, how is it vented? Soffit vents are inlets. Inlets AND outlets must be provided for air or it won't move.

1. 
   edwardh1 | Jan 19, 2005 04:59pm | #2

   the roof turns a corner on the side of the house then slopes down there is a roof (top) vent there near the top not visible from the road. thats about 20 ft from the vent fans tho- long way.

2. 
   rjw | Jan 19, 2005 05:12pm | #3

   venting through the soffit is a poor practice, in my experience. air is typically pulled up into the attic through the soffit vents and I have sen a few cases in my area (NW Ohio) where mildew and mold was growing in the attic above such a vent "discharge.)

   In my area an effective solution is to run the fan vent to just below a through roof vent.

   In a few thousand houses where I have seen that done, I haven't see any moisture problems.

   FWIW, I haven't found any correlation (positive or negative) between code attic (or crawlspace) venting requirements and actual performance.

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   Sojourners: Christians for Justice and Peace

1. 
   edwardh1 | Jan 19, 2005 08:14pm | #4

   thanks
   what does this mean:
   I haven't found any correlation (positive or negative) between code attic (or crawlspace) venting requirements and actual performance.