Is there an “allowable” dryer vent screen?. Today’s inspection had a rodent/bird screen installed at the exterior of the building with fairly large openings (estimated approximately 3/4"). It did not appear that a lint build up was possible with this type of cover.
Simple answer…NO
Ahhh what about the dryer boxes with the screens built inside;-)
I don’t agree with them either.
LET IT FLY! LET IT FLY! LET IT FLY!
Reason
If you have ever dried your clothes with the trap full it is a waste of energy and some designs can fill up pretty quickly.
Standards today say they are not a preferred idea.
www.usfa.dhs.gov/downloads/pdf/tfrs/v7i1.pdf - 2009-07-08
Like page 5 on the left side…but the entire PDF is good info.
Thanks Russel:
I did not want to mention fire hazard. You can probably guess why.
I see these on 3 story buildings all the time and clogged.
Who is cleaning them out?
for those that use code
SECTION M1502
CLOTHES DRYER EXHAUST
M1502.1 General. Dryer exhaust systems shall be independent
of all other systems, and shall convey the moisture to the
outdoors.
Exception: This section shall not apply to listed and labeled
condensing (ductless) clothes dryers.
M1502.2 Duct termination. Exhaust ducts shall terminate on
the outside of the building. Exhaust duct terminations shall be
in accordance with the dryer manufacturer’s installation
instructions. Exhaust ducts shall terminate not less than 3 feet
(914 rom) in any direction from openings into buildings.
Exhaust duct terminations shall be equipped with a backdraft
damper. Screens shall not be installed at the duct termination.
Good info guys. Its all the info I believed to be true. thanks.
OMG…was that just a post with a question and people answered the question, no one got off topic and hijacked the thread and no one got bashed?
Somewhere…over the rainbow…
Someone posted the Code.
Call the AHJ police. LOL:D
Until now. 
was fun while it lasted
he did try to “waist” our energy :twisted:
OOPS!
Waste
Thanks Barry
Sometimes we luck out EH!
Ductless dryer exhaust, “Not recommended in my opinion”
And neither is PVC like I see a lot.