On Mon, 16 Sep 2019 19:40:02 -0400, micky
wrote:

In alt.home.repair, on Mon, 16 Sep 2019 10:58:00 -0400, Ralph Mowery
wrote:

In article ,
says...

Why does taking a shower fill the attic with humidity? Bathroom fan
venting into the attic instead of outside? Something is very wrong
there.




Seems that was the way it was done at one time. I bought a house that
was built about 1965. The vent in the bath was just to the attic. Also

In my case, the tube from the bathroom fan ends right below the ridge
vent.

FTR I didn't say the attic was filled with humidity. I said it was
recommended for that reason. I don't take hot showers and I don't go to
the attic afterwards to see if it's humid there. I put the switch in so
the next owner of the house would have it.

very little insulation which was that shreaded paper type. What was it
called, something like blown celulease. There were about a dozen houses
in the neighborhood on a similar floor plan.

Pink fiberglass.
Blown cellulose was the common insulation back in the sixties.
Shredded newspaper with borax? (Borate) flame retardent.
It is still actually pretty widely used in some places.