Thanks, always good to learn something new.
"Separation time" does seem like an appropriate term when referring top how long it will take fire to penatrate a wall.
The only recollection I had of hearing the word "separation" used relative to fire stuff was in reference to the minimum "separation distances" between tanks of flammable substances and other objects or structures.
Happy Holidays,
Jeff
Right you are. International Residential Code goes on to say: ducts penetrating the walls or ceiling separating the garage from the dwelling shall be 26 gage sheet steel or "other approved material" and shall have no openings into the garage.
That leaves the possibility of ducting * through * the garage to the outside.
TB
wrote
Didn't the IRC used to specify 5/8" type x drywall or plaster, with a 1 hr. fire rating? Same with access doors seperating living space from garage. When did this change?
NO! No *openings* means just that. A continuous duct *may* pass *through*, but may not terminate or have any other openings in the garage.
Here, its. a minimum of 24 guage.
In the winter you'll have lots of condensation on the outside walls, some of it may freeze. If you do it in the summer your garage walls, and possible the walls in the rest of the house, will soon be covered in mold. The wood framing may even rot.
In the summer you've got to vent the humid air from the dryer outside. In the winter you could just blow it directly into the laundry room for a while to see how it works out; check how much condensation you get on your windows.
Ron charlottesville.
depends on the location, the dryer in parents's garage has been vented (electric not gas) into the garage for 45+ years with no ill effects.
They put used stockings over the exhaust as backup lint catcher; no lint, moisture or rust problems but they're in SoCal
YMMV
In a cold climate, it would destroy metal from the condensation.
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