**Santa Fe Sinuses: Stucco Mold Crashing Summer Airways?**

By Franklin Everett Shaw

November 6, 2025

The adobe walls of Santa Fe homes, so iconic and beautiful, can sometimes harbor a hidden enemy: mold. It’s a problem that many residents face, often unsure if that discoloration is just harmless dirt or something more sinister. This guide is your practical toolkit for identifying, addressing, and preventing stucco mold in your Santa Fe home, keeping your property healthy and beautiful.

First, let’s talk about what you’re likely seeing on your stucco. It’s crucial to distinguish between mold and efflorescence. Efflorescence is a white, powdery deposit of salt that leaches out of the stucco. It’s generally harmless and easily brushed off. Mold, on the other hand, is a living organism that thrives in damp conditions. It can appear in various colors – black, green, brown, or even white – and often has a fuzzy or slimy texture.

Here’s a simple test: spray the affected area with water. If the discoloration disappears temporarily and then reappears as the water dries, it’s likely efflorescence. If the discoloration remains, it’s more likely mold. Another key difference is location. Efflorescence tends to appear on areas exposed to direct sunlight and drying winds, while mold prefers shaded, damp areas, like north-facing walls or areas near landscaping.

Now, let’s say you’ve determined it’s mold. What do you do? For small, isolated patches, you can often tackle the problem yourself. Remember safety first! Wear gloves, eye protection, and a mask to avoid inhaling mold spores.

Here’s a step-by-step guide for DIY mold remediation on stucco:

1. Prepare the area: Cover any nearby plants or surfaces with plastic sheeting to prevent contamination.
2. Mix your cleaning solution: A simple solution of one part bleach to ten parts water is often effective. Never mix bleach with ammonia or other cleaning products, as this can create toxic fumes. For a more eco-friendly option, consider using a solution of vinegar and water (equal parts).
3. Apply the solution: Use a soft-bristled brush to gently scrub the affected area with the cleaning solution. Avoid using a pressure washer, as this can damage the stucco and force water into the wall, potentially exacerbating the problem.
4. Rinse thoroughly: Rinse the area with clean water to remove any remaining cleaning solution and mold residue.
5. Dry the area: Allow the stucco to dry completely. You can use a fan to speed up the drying process.

A common mistake is not addressing the underlying cause of the mold growth. Mold needs moisture to thrive. So, look for potential sources of water intrusion, such as leaky gutters, downspouts that direct water towards the foundation, or cracks in the stucco. Addressing these issues is crucial to prevent the mold from returning.

Consider the orientation of your home. North-facing walls in Santa Fe receive less sunlight and are more prone to moisture buildup. Ensure proper ventilation around these areas by trimming back vegetation and keeping gutters clean.

Another challenge is the porous nature of stucco. Mold spores can penetrate deep into the material, making complete removal difficult. If the mold returns quickly after cleaning, it’s a sign that the problem is more extensive than you can handle yourself.

When should you call in the professionals? If the mold covers a large area (more than 10 square feet), if you suspect it’s inside your walls, or if you have health concerns related to mold exposure, it’s time to call a professional mold remediation service.

Here are a few local Santa Fe resources to consider:

• Santa Fe County Environmental Services: They can provide information on mold testing and remediation guidelines.
• Local mold remediation companies: Search online for “mold remediation Santa Fe NM” to find licensed and insured professionals. Be sure to check their reviews and ask for references. Companies like Southwest Restoration and PuroClean of Santa Fe are often recommended.
• Home inspectors: A qualified home inspector can assess the extent of the mold damage and identify potential sources of moisture.

Preventing mold growth is always better than dealing with it after the fact. Here are some preventative measures specific to Santa Fe’s climate and architecture:

• Maintain your stucco: Regularly inspect your stucco for cracks and repair them promptly. Use a stucco patching compound specifically designed for your type of stucco.
• Clean your gutters: Clogged gutters can cause water to overflow and run down your walls, creating a breeding ground for mold. Clean your gutters at least twice a year, especially after the monsoon season.
• Control moisture: Ensure proper ventilation in your home, especially in bathrooms and kitchens. Use exhaust fans when showering or cooking. Consider using a dehumidifier in damp areas.
• Landscape wisely: Avoid planting vegetation too close to your stucco walls. Trim back any existing plants that are touching the walls to allow for proper airflow.
• Consider a mold-resistant paint: When repainting your stucco, use a paint that contains a mold inhibitor. This can help prevent mold growth in the future.

Santa Fe’s unique architectural style, with its flat roofs and earth-toned stucco, is beautiful but can also be susceptible to moisture problems. Flat roofs require regular maintenance to prevent leaks, and the porous nature of stucco can trap moisture. By taking proactive steps to prevent mold growth, you can protect your home and your health.

Don’t underestimate the importance of proper drainage. Ensure that your property is graded so that water flows away from the foundation. Consider installing French drains or other drainage systems to divert water away from your home.

Remember, dealing with mold can be a complex issue. If you’re unsure about any aspect of mold identification, remediation, or prevention, it’s always best to consult with a qualified professional. Protecting your Santa Fe home from mold is an investment in its long-term health and beauty.