Mold Armor E-Z House Wash is safe for most roofing materials, as well as vinyl, aluminum and wood siding, brick, stucco and concrete. It can also be used to clean painted trim, decks and fences.

A quick test for mold can be done when you dip a swab in diluted bleach (1 part bleach, 16 parts water) and dab it on the wall. If the spot quickly lightens (or keeps coming back after cleaning ...