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In E+ (and OS) a surface belongs to a zone so the surfaces that divide one space/zone from another must be duplicated and mirror images of one another. If this wasn't the case one space/zone would have a ceiling but the one above wouldn't have a floor.

To illustrate this look at adjacent spaces in the SketchUp Plugin using Hide Rest of Model.

It's important to note that the ceiling construction of one space/zone must be a mirror image of the adjacent floor construction, same for walls, otherwise it will cause an E+ error.

Inheritance: Material > Construction > Building:Surface:Detailed > Zone

In E+ (and OS) a surface belongs to a zone so the surfaces that divide one space/zone from another must be duplicated and mirror images of one another. If this wasn't the case one space/zone would have a ceiling but the one above wouldn't have a floor.

To illustrate this look at adjacent spaces in the SketchUp Plugin using Hide Rest of Model.

It's important to note that the ceiling construction of one space/zone must be a mirror image of the adjacent floor construction, same for walls, otherwise it will cause an E+ error. error.

Inheritance: Material > Construction > Building:Surface:Detailed > Zone

image description

In E+ EnergyPlus (and OS) OpenStudio) a surface belongs to a zone so the surfaces that divide separate one space/zone from another must be duplicated and mirror images of one another. duplicated. If this wasn't the case one space/zone would have a ceiling but the one above it wouldn't have a floor.

To illustrate this look at adjacent spaces in the SketchUp Plugin using Hide Rest of Model.

It's important to note that the ceiling construction of one space/zone must be a mirror image of the adjacent floor construction, same for walls, otherwise it will cause an E+ error.error (see image below for example).

Inheritance: Material > Construction > Building:Surface:Detailed > Zone

image description