Running vents outside in cold climate...

alan_s_thefirstMarch 29, 2014

My new (to me) house was built without bathroom vents (yuck) and the dryer vent currently exhausts right under a deck.

This means I'm going to have to run a bathroom vent and a dryer vent under the deck out to clear space.

I'm in British Columbia, so the rules may vary somewhat, but I know the vents have to be insulated when they enter the cold space outside.

I can get the black sock- insulation and black plastic sleeve stuff, but I'm sure it's not outdoor rated, and the deck is not waterproof, so rain and melting snow will drip on it. Galvanised could eventually rust, which is my other concern.

I had considered perhaps wrapping the pipe in suitable insulation, (I assume rockwool for the drier vent) and sleeving it with a larger diameter pipe - probably UPVC sewer pipe. It would be an air and moisture barrier.

The only other alternative I can think of is double walled external fireplace piping, but being stainless I suspect it's incredibly expensive.

Any thoughts?

Thank you for reporting this comment. Undo
klem1

Double wall pvc with foam in cavity.

    Bookmark   March 30, 2014 at 1:19PM
Thank you for reporting this comment. Undo
jackfre

The PVC sleeve will work for the dryer vent, but I do not think the sewer system vent will work. It may work, but you will be putting the very sweet sewer odors right at the deck level. When the wind blows just right, you will not be very pleased. You might better bite the bullet and do it correctly. open the right wall or go up the inside wall of a closet and run the soil pipe vent to the roof.

    Bookmark   March 30, 2014 at 1:30PM
Thank you for reporting this comment. Undo
saltidawg

Jackfre,

I didn't read the OP to say "sewer system vent," but rather a bathroom exhaust fan vent. (Similar problem to dryer exhaust.)

OP???

    Bookmark   March 30, 2014 at 2:34PM
Thank you for reporting this comment. Undo
klem1

â¢Posted by Jackfre (My Page) on
Sun, Mar 30, 14 at 13:30

"The PVC sleeve will work for the dryer vent, but I do not think the sewer system vent will work. It may work, but you will be putting the very sweet sewer odors right at the deck level. When the wind blows just right, you will not be very pleased. You might better bite the bullet and do it correctly. open the right wall or go up the inside wall of a closet and run the soil pipe vent to the roof."

Come jackfire,give the man some credit,surly you don't believe he considered useing fireplace flue pipe for a sewer vent stack. It's a _art fan and cloths dryer he's wanting to vent.

    Bookmark   March 30, 2014 at 3:40PM
Thank you for reporting this comment. Undo
saltidawg

"Come jackfire,give the man some credit,surly you don't believe he considered useing fireplace flue pipe for a sewer vent stack. It's a _art fan and cloths dryer he's wanting to vent."

Come klem1, read the post immediately following jackfire's.

lol

    Bookmark   March 30, 2014 at 4:11PM
Thank you for reporting this comment. Undo
alan_s_thefirst

Sorry - hadn't had a chance to login for a while.

Yes, it's a bathroom fan and dryer vent. I realise even a bathroom fan may output some nasty smells - but it'll be pointed mostly at the neighbours (LOL), but not directly where they'll be spending any time (it's next to their carport.)

I would prefer to route it straight away from the house, towards my own backyard, but it's right where I shovel the snow off my deck so those vents would be buried in snow.

    Bookmark   April 12, 2014 at 1:08AM
Sign Up to comment
More Discussions
New Bryant legacy vs 5 year old carrier infinity
My parents need a new a.c., There's is broken and probably...
David
HVAC question
I live near Charlotte NC and have a new Bryant Hybrid...
gtodd1966
furnace condensation freezing up
A non-profit club that I belong to has a furnace that...
doglover3
auxiliary heat vs. emergency heat
Greetings, I have a Bryan Evoltion Control heat pump...
decadent
Enery efficiency of exposed ductwork?
What are your thoughts on the energy efficiency of...
ccintx
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™