Revit Certification Practice Test 2025 – All-in-One Guide to Master Your Certification!

The option that allows you to draw the sketch boundary of a flat roof and set its thickness is the method of creating a roof by footprint, where the thickness is defined by the roof type. This approach enables you to specify the roof's boundary using a sketch, and by selecting a roof type, you can control its thickness and other properties directly in the type properties.

When creating a roof by footprint, you have the flexibility to draw the limits of the roof as required, and the characteristics of that roof, such as its thickness, slope, and materials, are managed through the parameters defined in the roof type. This integration means that alterations to the roof type can automatically adjust the thickness of the roof across your model, which streamlines revisions and maintains consistency.

Other methods, such as "Roof by Sketch" or "Roof by Profile," either do not explicitly allow for setting thickness in the same way or apply differently. For instance, "Roof by Sketch" typically refers to more freeform roofs and may not provide as direct a control over thickness as the footprint method. "Roof by Filled Region" is primarily for creating visual representations and does not construct a physical roof element with defined thickness and structural properties.