Which rooms do you clean the most? Typically, it’s the high traffic areas you use every day, like the bathroom, kitchen, and bedrooms. While it’s important to maintain the more visible areas of your home, the hidden sections, like the attic and crawl spaces, can also affect your health and safety.

From moisture control and insulation to ventilation and pest prevention, there’s more of a chance these closed-off areas could be harboring issues you may not notice. There’s even more of a chance these issues will get worse if you pack these areas with clutter. Cleaning out your attic and crawl space can not only help protect your home and belongings but also your overall quality of life.

What’s the purpose of an attic and crawl space?

Some homeowners may see these spaces as extra storage, but they serve important structural and environmental purposes.

An attic acts as a buffer between indoor living areas and outdoor weather conditions. It’s usually the site of your home’s ventilation system, HVAC ducts, electrical wiring, and insulation. When properly maintained, this space can offer the following benefits:

• Regulate indoor temperatures
• Prevent roof damage
• Improve energy efficiency
• Reduce moisture buildup

When stuffed with boxes and often unchecked, poor circulation can lead to mold growth, pests can move in, and it can be harder to access utilities for maintenance.

In some homes, a crawl space can be the shallow area between the ground and the first floor. Other homes have nooks beneath the roof that can be accessed by small doors around the home. These areas can store plumbing, electrical systems, and structural supports. When maintained, it can also help:

• Separate the home from ground moisture
• Enhance airflow beneath the home and around roof eaves
• Protect pipes and utilities
• Support structural stability

Because some crawl spaces are close to the soil, they’re more vulnerable to humidity and water intrusion. This makes them less ideal for storage, but more important to keep clean.

What happens when the attic and crawl space aren’t clean?

Ignoring hidden spaces in your home increases the chances of missing important warning signs that could lead to costly repairs and health issues.

Since the attic and crawl space are both susceptible to moisture issues, they’re the ideal environment for mold growth. Spores can spread throughout the home through the walls and vents. Not only could this cause physical damage, but it could also lead to contaminated air and affect your health.

Cluttered spaces also limit air circulation and ventilation. When warm air can’t properly escape through the attic or cool air can’t filter through the crawl space, humidity builds and forms condensation — another moisture problem.

When you don’t check these areas often, you may be missing signs of leaks, mold, and other moisture issues. Over time, excess moisture can weaken wooden structures and affect your roof, walls, and foundation. But you can help limit the damage by catching the issue early. The key is keeping these areas clean.

How to keep the attic and crawl space clean

While you don’t have to clean every area of your home as often as others, each space deserves regular attention. When it comes to the attic and crawl space, there are some indicators these spaces need cleaning:

• Musty odors
• Mold
• Pests
• Hot or cold spots around your home

Regular inspections help catch problems before they worsen. Keeping these areas clear of clutter can make it easier for air to circulate and to notice signs of any trouble. You can also check the following throughout the year to help ensure your attic and crawl space are doing its job:

• Inspect insulation for moisture or mold
• Check the attic for roof leaks
• Clean vents around the home
• Monitor humidity levels

Don’t let these hidden areas go unnoticed. Keeping attics and crawl spaces clean and clear can help prevent extensive damage and improve the comfort and air quality around your home.