We recommend that you do not have the planter or soil actually make contact with the house. You would want to leave an air space, and make the planter an independent element. (you could leave an air space, and then build some type of water-proofed back wall out of plain concrete block, or poured concrete, making sure that water will drain out the front of planter and away from house. Hope this helps!
That would be a great question for air-vol. Their employees would be able to help and plan for you.
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