Why Painting Brick Can Backfire: Expert Advice on Five Key Risks

Compiled by the editorial desk with reference to expert commentary from Kerrie Kelly and Mike Mundwiller, as published in original reporting.

Brick has long been a favorite of designers for its timeless appeal and the way it plays with light and shadow. Yet for homeowners who tire of its ruddy tones or find it clashes with their decor, painting over it can seem like an easy solution. But design and paint professionals caution that this seemingly straightforward project carries hidden risks that can lead to costly repairs and even diminish a home's value.

Kerrie Kelly, CEO and creative director of Kerrie Kelly Studio and former national board chair of the American Society of Interior Designers (ASID), and Mike Mundwiller, senior manager of end user product experience at Benjamin Moore, outlined five scenarios where painting brick is a bad idea. Their guidance is particularly timely as many homeowners tackle renovation projects during the spring and summer months.

When Damage Lurks Beneath the Surface

Before any paint is applied, the brick and its mortar must be in sound condition, free of cracks, chipping, or flaking. Kelly explains that paint can trap moisture, exacerbating existing damage and leading to decay. What may look like a cosmetic refresh could actually accelerate structural deterioration.

The Chalky White Stain Warning

A white, powdery residue on brick, known as efflorescence, is a red flag. These crystalline salt deposits form when water is present, and they cannot be simply washed away. Mundwiller advises that efflorescence must be removed with a wire brush or similar tool before painting; otherwise, the coating traps salts and moisture, leading to degradation over time.

Historic Brick: Aesthetic and Value at Stake

For older homes, painting brick can strip away character and reduce property value. Kelly notes that if the brick is historic or architecturally significant, paint can detract from its worth. Homeowners are encouraged to research the history of their structure—a fireplace dating to the 1800s or walls original to a century-old schoolhouse may be better left untouched. As an alternative, Kelly suggests a grout wash to refresh the look without covering the material's story.

Shiny Surfaces Spell Trouble for Paint Adhesion

If brick has a sheen or gloss, it often indicates a protective or decorative glaze that prevents paint from adhering properly. Mundwiller emphasizes the rule: a surface must be sound, clean, dry, and dull. While special primers or de-glossers might help, he recommends consulting an expert to assess feasibility.

Extreme Weather and the Maintenance Trap

Exterior brick in regions with heavy rain or high humidity is particularly prone to paint failure. Peeling, flaking, and fading can occur quickly, forcing frequent touch-ups or full repaints. If painting is unavoidable, Mundwiller stresses the need for permeable, 'breathable' paint systems that allow moisture to escape, preventing blistering and peeling.

Ultimately, the decision to paint brick should not be taken lightly. By heeding the advice of these professionals, homeowners can avoid common pitfalls and preserve both the integrity and value of their homes.