Roofing systems are built to withstand various weather conditions. However, they are still prone to deterioration over time due to long-term exposure to the elements. One factor that you’ll need to pay close attention to is humidity.
Today, we discuss how humidity can affect your roofing system.
What Happens if There Is Too Much Humidity
Heat and humidity are major contributors to roofing issues that can be difficult to resolve. They significantly impact your roof and can even pose health risks to people.
When moisture enters the attic, the property is immediately at risk of structural damage. Moisture in this space can become trapped. As a result, condensation and mold will grow on the attic floor joists, roof joists and even the roof rafters. Wood rot compromises the stability of the plywood sheathing and causes the other layers to separate.
Mold spores can cause coughing and itchy eyes. This could even cause allergic reactions and dangerous asthma attacks.
Sunlight and heat rising into your attic or crawl space can cause your shingles to curl and shrink, nails to pop, screws to loosen and weak spots to form. When this happens, cracks and splits in the roof allow water to seep into your home, resulting in costly water damage.
What You Can Do
Indoor humidity levels can be controlled. Here are some tips from a residential roof repair expert:
- Because cold air is a natural dehumidifier, an air conditioner set to the proper temperature can help reduce humidity in your living spaces. Running a dehumidifier will also aid in absorbing moisture in the air. You can get standalone units for each room or a whole-home unit that connects to the air handler in your HVAC system.
- A well-designed sloped roof should include a passive ventilation system with exhaust vents at the ridges and intake vents at the soffits. Your roofing contractor can improve attic ventilation. If passive ventilation is still insufficient, exhaust fans can be added.