Sorry, rookie mistake as I am running Home Designer Professional and it does not have the Floor Definition "Insert" button to add layers to a floor assembly. I'll try posting to the HD Forum. Thanks much.
I still can't seem to locate where to add layers to the floor assembly. I tried the Room Specification\Structure\Floor Structure Edit Button that takes you to the Floor Structure Definition pop-up. There I see Layers 1 & 2 where you can type in the thickness of your components (TJIs & plywood) but I don't see how to actually add another layer for the 1 1/2" of gypcrete. I also tried the same through the Edit Tab\Default Settings\Floor\Structure\Floor Structure Edit Button and I see the same info but no obvious way to add layers. I am working on 2015 if that makes a difference.
Thanks Joe. I will have to re-look at the Floor Structure dialog box as I thought I reviewed that pretty thoroughly and did not see a way to add the desired third layer. That would solve the issue.
Thanks again.
Is there a way to modify the floor assembly to include more than 2 components? I see options to use floor joists and sheathing but I have a need to show gypcrete with radiant floor heat in my building sections and details as well. I currently did a work-around by showing my flooring thickness as 2 1/8" (1 1/2" for gypcrete and 5/8" for a flooring material) but that does not properly capture the section I need. Any ideas or direction would be appreciated.