Yes, LOAFERS is a Scrabble word!

Letter values in Scrabble US: L 1, O 1, A 1, F 4, E 1, R 1, S 1.

Is it a valid word?

LOAFERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

person who does no work
a low leather step-in shoe; the top resembles a moccasin but it has a broad flat heel

Also: do-nothing.