Creating mesh ontop of 3d objects

[Anonymous]

Hi

I have a autocad 3d model of this arrangement, a chimney and surrounding roof tiles.

How would i go about drawing the flashing material ontop of the tiles like in the image below, it moulds onto the profile shaped tiles and up the wall.

I cant think of a way of doing it 

Thanks

[imadHabash]

Hi,

- turn on your Dynamic Ucs ( F6) . when the mouse hoover over any face you will be able to draw over it.

- start to draw flashing lines over the chimney face.

- when you finish use PresPull command.