On 12/12/2015 3:44 PM, Dave wrote:
When ceiling a French drain for the basement or floating slab which would
be better?

A basement ceiling is an odd place for a French drain.

Great stuff or backer rod?

Yes, backer rods are great stuff.

I have read pros and cons on both so I'm looking for someone who has
experience that can help me make a decision before we install a mitigation
system in our house. As always any help and good advice is always
appreciated thank you and advance

Your welcome and advance