Linda, what do you mean by
Composite Wall approach? Simplified equivalent construction?
Read about the composite walls dataset approach in the Output Details
(and other?) places in the documentation. There is a dataset but the
developer/researcher describes the whole technique of approach -- not
sure it can be used for massive walls appropriately -- but why
not?
Otherside coefficients is the approach, by the way, that the slab and
basement use to help model the ground contact temperatures.