Question: I've been told I should use a brush to apply the Benjamin Moore siding and deck stain to my cedar fence because you use less paint and somehow it's better for the fence.
Answer: The motion of the brush usually forces the paint/stain into the pores and cracks of the wood better than a roller, which has a tendency to have the paint, sit on top of the pores and cracks. However, in my experience you use more paint with a brush (usually because you put the paint on thicker) than with a roller.