I have a question on attic ventilation. We just fired up the air conditioner
in the new home and nothing. I'll cut to the chase and say that I think much
of the problem if not all is inadequate attic ventilation. I think the attic
unit and flexible, insulated tubing are just a giant heat exchanger taking
pretty cool air at the unit and warming it by the time it gets to the vent.
I felt the air at the vent this morning before the attic heated up and it
was noticeably cooler. I'm sure that the attic had cooled down a bit over
Today when I got home.
Outside temp - 91
Temp at vent - 81
Temp in attic - 119
We have a hip roof type, I guess that's what it's called, w/ about 20' of
ridge vent. (The 1" thick floor buffer material like stuff in the ridge
vent) There are soffit vents most of the way around but most were also
blocked with insulation. Tonight I cleared most of it. I'm sure that will
make some difference but I'm still unsure if we have enough ridge venting to
cut it. I've heard you need about 1 sq. ft of venting (both for soffit and
ridge, not combined) for ever 300 sq ft of attic. Is that attic floor space
or attic roof? They aren't always the same because of cathedral ceilings
cutting into some of that.
Anyway, besides that question any other ideas, insights, should we have to
add additional venting, would be appreciated.
Thanks to the group in advance!