The first part is to string a line so that the first crossbeam will be plumb.

Here carpenter and Esse' place the first cross beam so that there is a secure place to nail the side panel.

A nail is placed on every rafter to give the location of the cross beams.

Now that the first cross beam is in place Ray can begin to cut the rafters flush.

JR gives it a try as Esse' tries to get away.