Replies

1. 
   mikemahan3 | Dec 14, 2021 09:10pm | #1

   What you want is to eliminate any hidden route for termites from the soil to wood. In new construction you could put sheet metal under the bottom plate folded over the foam. Since you can’t get under the plate I’d just leave off the insulation above grade.

1. 
   agm413 | Dec 15, 2021 11:03am | #2

   Thanks for the reply. AS a follow up - there's no soil contact. where the foam would be.

   The foam/cladding over the foam would be in contact with a concrete driveway, so technically there's already no route from soil to wood.

   Also since the wall is a full above grade and concrete it's a pretty big heat sink. It's also north facing, so very cold just due to that orientation.

   I could do interior foam, but that particular wall has a lot of water, gas, electrical, sewer venting, and hvac ducts to work around on the interior so it's a bit trickier than exterior - not impossible, just less ideal.

1. 
   mikemahan3 | Dec 15, 2021 12:44pm | #3

   The joint between the driveway and the wall could be a route in. This should be seriously caulked to prevent this. Seal the foam to the wall with pest stop and protect the foam with sheet metal or equivalent. Should be OK.

1. 
   agm413 | Dec 16, 2021 10:35am | #4

   Thank you, appreciate the insight.

2. 
   jimmiem | Dec 16, 2021 04:05pm | #5

   Yes