In most cases chimneys on a federal style house are symmetrical, on this house the chimneys are categorized as inside end chimney meaning they are located within the construct of the house. A less popular location for the chimneys would be next to the house it self, this is know as an outside end chimney, click here to see a sample of this style.
This style of roof is nothing more than a roof which comes to a point at the the roofs highest point. Often the point is hidden by an upper balustrade. Below is a drawing of this style of roof from directly above.

Balustrades are decorative railings which are located near the roof of the house. The lower balustrade often hides a low graded hipped roof.
This decorative detail appears almost exclusively on federal houses which are executed in wood rather than brick, though wooden federals have been seen without them. This addition was to emulate marble quoins which were popular in Europe.
Balustrades are decorative railings which are located near the roof of the house. The upper balustrade often hides the point of a high graded hipped roof.
Windows are categorized by the number panes of glass on the upper window over the number of panes of glass on lower window. In most cases all major windows are six over six. On federal mansions executed in brick often windows are capped off with stone lintels (click here to see a lintel highlighted in yellow and a diagram of counting window panes).
The entablature rests upon columns which can be with or with out groves.
A door on a federal mansion is the central focal point, and is usually quite large and predominant. In most cases the door has six panels.
A very decorative semicircular window which is shaped after a fan and caps off the door of a federal mansion.
Square or semi-elliptical wooden structure resting on columns to create a portico entryway.

Decorative windows which flank the main door.