A SF barred male can come from a non barred rooster over a barred hen. Or a SF or DF barred rooster over a non barred hen. Or a SF barred rooster over a barred hen.
A SF rooster over a barred hen will produce SF and DF males and barred and non barred females.
A SF rooster over a barred hen will produce SF and DF males and barred and non barred females.