The foot purlin (or wall purlin) is usually located in the eaves area of a roof surface directly on the floor ceiling or a knee stock (sill).
Foot purlins can be smaller than the other purlins, as they usually rest over the entire surface of the floor ceiling. If it rests over the entire surface of the outer wall, it is called the foot purlin threshold ( ☛ see also " ☛ see also "purlin roof" baukobox.de
