# Applying F-Factor Constructions to Ground Floor Perimeter Zones

I would like to apply f-factor ground floor constructions along the ground floor perimeter zones of a model. Could someone tell me if I need to make an f-factor construction for each perimeter zone, or can I apply the same construction to all the perimeter zones? If I need to make a unique f-factor construction for each perimeter zone, do I input only that zone's area and exposed perimeter in the construction or for the whole floor? I have about 30+ zones on the ground floor and have tried multiple ways to see what works and have not had any luck.