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Now please keep in mind that creating roofs in this manner has it’s limitations. The roof themselves are very simplistic. If you want a pitched roof, you will need to create two pitched planes first BEFORE you convert each plane to roof elements. Creating “proper” Revit Roofs (using the Roof tool) is a LOT more flexible- ie you can create pitched roofs directly from a perimeter outline, etc.

Back to our model. We may want to manipulate the roof elements that we’ve just created. For example at the moment the roof is inside the perimeter of the external walls and the top surface of the roof is at the same level as the top of the walls….

But what if we want our roof to sit “on top” of the walls and to overhang them? First of all select the roof element by clicking on it- it will turn red once highlighted. Then view the properties for this element by hitting the “Element Properties” button….

To get the roof element to sit on top of the wall, all we have to do is add an offset value of 125mm (the thickness of the element itself) to the Level that the element is placed on…..

Upon clicking “OK” we see that the roof element has been lifted up by 125mm….

The simplest way (although not the most accurate) to make the roof element overhang the edge of the building is to select it (3D Views allow easy access for selecting objects) and drag it’s edges using the blue triangular grips…

Hopefully what this series of 5 articles has shown is that Revit can help you develop a building design from a completely “blank canvas”. Of course you can just dive straight in with walls, doors and windows- but don’t forget that Revit can help at a much more conceptual level too.

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