You notice your vinyl siding has a slimy green growth. Could it be dreaded mold? Today, you'll learn how to handle this intruder to vinyl, and what you should do about it. First, relax. If it's green, it's probably moss. The most common mold problem is mildew, which is pitch black. Most likely, all it needs is a good scrub with the following: Mix 1/3 cup of powdered laundry detergent with 3 quarts of warm water and 1 quart of liquid chlorine bleach. Apply with a long-handled brush, rinse well and scrub from the bottom up (to prevent streaking). Also try to increase sunlight and improve air flow by trimming back some shrubbery. It'll help reduce or prevent regrowth. And that's the On The House Tip for today.