Here’s how Klemm did it: White paint with an eggshell finish was brushed on in small sections, and then wiped down with rags to remove most of the paint. (She did two coats like this, to achieve the lightness she was looking for). For a finishing touch, she sanded over all the bricks with a medium grit sanding sponge. This brought touches of the original color through and gave her the rich texture she felt was missing after the whitewashing.
She used Annie Sloan Chalk paint and watered it down by dipping her paint brush in water and then paint. She haphazardly painted it on. If it was too thick for her, she dipped it in water again and went over it. www.thepainteddrawer.com