[jeeper]

Just wanted some opinions on cutting the 4" hole for bathroom vent. I was going to relocated the outside water gate valve and just make the 4" hole in that location. Just wanted to make sure that it is ok to do this in this location marked in red. It's not a joist so not sure if the D/6 rule applies when boring in the outside wall plate.

 

[Termite]

I would have little concern about putting the hole for the vent through the rim joist. It is done that way all the time. Boring rules could still be applied but the rim joist isn't in span so as long as you aren't drilling under a load point (trimmer studs supporting a window header, etc) you're good.

I'd recommend a circular hole just to be safe though.

 

[jeeper]

Thanks,

It isn't under load point such as you mentioned windows etc. This is just the outside wall rim joist. I figured that it must be done like this just didn't know how you would get around it if they hole boring code applied for a none span joist 2x8. Thanks.

 

[Gary in WA]

Make sure to insulate it, so moisture won't condense in the pipe before it goes out.

Question: Is the joist over the plastic tubing sticker tag - - sagging? It may be my eyes. If so, I'd lift it flush and put a hanger on.

Be safe, GBAR

 

[extensions]

it will be better to use an adaptor instead of 4 inch hole. However - to me it looks like a load wall bearing and if it is - then it is safe to do it.