When the outside wall is parallel to the joists, is the wall supported only on the rim joist? Does it matter whether the wall is 2x4 or 2x6? If a joist is added under the plate, is it spaced away from the rim joists? If so, who insulates the void that is created between them? TJI for example doesn't detail this condition. Thanks in advance for the info. If this topic has been covered before, please direct me to the chat.