Problem with Sloped Glazing Roof Panels

[dvanburen]

Dear All
I am putting a skylight into my model using Sloped Glazing which is working fairly well. However I am having a problem with the location of the glass. I cannot seem to get it to be within the mullions. Instead it extends beyond the mullions. I have assumed that in the roof properties/edit/construction- curtain wall panel I would choose a type that would be appropriate. However I cannot seam to get them to work and often get a message that reads "Can't make type "Curtain wall panel 2". I have attached some views for your reference. If there is a Revit template file that you can recommend I start with or another way of fixing the problem that would be great.

Thanks
Deanna VanBuren