dcyrilc
Super Member
Absolutely, but that is also a main reason to keep penetrations out of the foundation walls if possible. Around here, most electrical service comes in through the rim joist, if it goes in to the basement. Very little chance for water intrusion that way (assuming reasonably proper detailing...) as it is above grade. When all you have is the caulk as the seal, you will eventually get a leak... In your case, you clearly understand the need to keep roof drainage and surface water away, you just aren't done yet. Carry on!:thumbsup:
The best means for a belowground entry is to drill the forms and poar the wall with the conduit already in place. Many concrete contractors don't like this though as they like to reuse their forms, but it does eliminate the issue of leakage since the concrete bonds directly to the conduit. It is also more work for everyone involved to make sure that everything is placed correctly and will not move during the poar.