**Houston AC: Is Cheap Drywall Fueling Summer Sinus?**
By Franklin Everett ShawDon’t let your Houston home become a sinus infection incubator. The combination of our humid climate and construction practices can create a perfect storm for mold and allergens.
Houston, we have a problem. Many of us are unknowingly living in homes that are actively contributing to our chronic sinus issues. The culprit? A combination of factors unique to our region: widespread use of inexpensive drywall, the necessity of running our AC constantly, and the resulting high humidity levels trapped indoors. This creates a breeding ground for mold, dust mites, and other allergens, turning our homes into silent enemies. Let’s break down how this happens and, more importantly, what you can do about it.
The problem starts with the drywall itself. After Hurricane Katrina, there was a surge in demand for building materials. Some drywall imported from China contained high levels of sulfur compounds. While not all drywall is problematic, the potential for off-gassing and mold growth is higher in homes built or renovated during that period. This “Chinese drywall,” as it’s often called, releases gases that corrode metal and, more importantly, irritate the respiratory system.
Then there’s the Houston humidity. It’s not just a saying; it’s a way of life. Our air is thick with moisture, and that moisture gets trapped inside our homes. We combat this with air conditioning, which, while essential for survival, can also exacerbate the problem.
Here’s why: AC units cool the air, but if not properly maintained, they can become breeding grounds for mold themselves. Condensation forms on the coils, and if the drainage is clogged or the system isn’t cleaned regularly, mold spores thrive. These spores are then circulated throughout your home every time the AC kicks on.
So, how do you know if you have a problem, and what can you do about it? Let’s get practical.
DIY Drywall Inspection: A Houston Homeowner’s Guide
While a professional inspection is always recommended, here’s a DIY approach to identify potentially problematic drywall:
The Smell Test: A telltale sign of problematic drywall is a sulfur-like or “rotten egg” odor, especially in enclosed spaces like closets or electrical outlets. This smell is more noticeable when the AC is running.
Visual Inspection: Look for blackening or discoloration around electrical outlets and wiring. This is a sign of corrosion caused by the off-gassing of sulfur compounds. Remove an outlet cover (after turning off the breaker, of course!) and inspect the wiring directly.
Copper Corrosion: Check copper pipes and wiring for black or brown corrosion. This is another indicator of sulfur-related issues.
Year Built/Renovated: If your home was built or renovated between 2004 and 2007, the risk of having problematic drywall is higher.
Humidity Control: Winning the War Against Moisture
Lowering indoor humidity is crucial. Here’s how:
Invest in a Dehumidifier: A good dehumidifier can make a huge difference. Look for one with a built-in humidistat to automatically maintain the desired humidity level (ideally between 30-50%). For a typical Houston home, consider a unit with a capacity of at least 50 pints per day.
Proper Ventilation: Use exhaust fans in bathrooms and kitchens to vent moisture outside. Ensure these fans are actually venting outside and not just into the attic.
Fix Leaks Promptly: Even small leaks can contribute to moisture buildup. Address any plumbing leaks or roof leaks immediately.
Monitor Humidity Levels: Use a hygrometer to track the humidity in your home. These are inexpensive and readily available at most hardware stores.
Air Filtration: Cleaning the Air You Breathe
Air purifiers can help remove mold spores, dust mites, and other allergens from the air.
HEPA Filters are Key: Look for air purifiers with HEPA (High-Efficiency Particulate Air) filters. These filters are designed to capture at least 99.97% of particles 0.3 microns in size.
Consider Activated Carbon Filters: For homes with potentially problematic drywall, consider an air purifier with an activated carbon filter. This will help absorb some of the sulfurous gases.
Placement Matters: Place air purifiers in areas where you spend the most time, such as bedrooms and living rooms.
Regular Filter Replacement: Replace filters regularly according to the manufacturer’s instructions. A clogged filter is ineffective.
HVAC Maintenance: Preventing Mold Growth at the Source
Your AC system is a prime suspect in the mold equation.
Regular Inspections and Cleaning: Schedule annual HVAC inspections and cleaning with a qualified technician. They can clean the coils, check the drainage, and identify any potential problems.
Clean or Replace Air Filters Regularly: This is the easiest and most important thing you can do. Check your filter monthly and replace it every 1-3 months, depending on the type of filter and the air quality in your home.
Consider UV Lights: UV lights installed in your HVAC system can kill mold and bacteria as they pass through the system. This is a worthwhile investment for Houston homeowners.
Ensure Proper Drainage: Make sure the condensate drain line is clear and flowing properly. A clogged drain line can lead to water damage and mold growth. You can flush the drain line with a mixture of bleach and water to prevent clogs.
Specific Challenges in Houston:
Older Homes: Many older homes in Houston have poor insulation and ventilation, making them more susceptible to moisture problems. Consider upgrading insulation and adding ventilation to improve air quality.
Flooding: Houston is prone to flooding, which can lead to widespread mold growth. If your home has been flooded, it’s crucial to have it professionally inspected and remediated for mold.
Clay Soil: Houston’s clay soil can cause foundation problems, which can lead to cracks in walls and floors, allowing moisture to enter the home. Address any foundation issues promptly.
Common Mistakes and How to Avoid Them:
Ignoring the Problem: The biggest mistake is ignoring the problem and hoping it will go away. Mold and allergens will only get worse over time.
Using the Wrong Cleaning Products: Avoid using harsh chemicals that can irritate your respiratory system. Opt for natural cleaning products or a mixture of vinegar and water.
Not Addressing the Source: Simply cleaning up mold without addressing the underlying moisture problem is a temporary fix. The mold will likely return.
DIY Mold Remediation: For large areas of mold growth, it’s best to hire a professional mold remediation company. They have the expertise and equipment to safely and effectively remove the mold.
Real-World Scenario:
Let’s say you live in a 1950s bungalow in the Heights. You’ve noticed a musty smell in your bedroom and have been experiencing persistent sinus congestion. You suspect mold.
Start with the DIY drywall inspection. Check for smells and discoloration around outlets.
Invest in a hygrometer and monitor the humidity in your bedroom. If it’s consistently above 60%, you have a problem.
Clean or replace your AC filter. Then, schedule an HVAC inspection to check for mold growth in the system.
Purchase a dehumidifier and an air purifier with a HEPA filter.
If you find significant mold growth, consult with a professional mold remediation company.
By taking these steps, you can create a healthier and more comfortable living environment in your Houston home. Don’t let mold and allergens control your health. Take action today!