Does a metal roof require a specific type of ventilation? Venture into why ventilation is beneficial to your metal roof.
A new roof is a great home improvement upgrade because not only does it provide instant curb appeal and increase your home’s resale value, it affords protection and durability against the outdoor elements. One of the most overlooked parts of a roofing system is the ventilation — it is critical to your home’s energy efficiency, indoor air quality, and temperature control.
At Adavantex Restoration, we specialize in metal roofs. Take a moment and join us in today’s blog as we discuss metal roof ventilation and why is it beneficial to your home.
Does a Metal Roof Require Ventilation?
Similar to other roofing materials, most metal roofs depend on static ventilation, which incorporates natural, free-flowing air instead of electric fans to create the movement of air. Hot air rises and builds in warm temperatures towards the attics or ceilings of the dwelling, and moisture and heat collect there in the cold weather.
With proper ventilation, hot air is replaced for fresh, cool air — there is a balance between exhausted and intake air.
While metal roofs don’t necessarily need specific ventilation measures, optimal ventilation will benefit every home.
How Much Ventilation Does a Metal Roof Require?
More ventilation is always recommended over less, and in most regions, codes require one square foot of ventilation per 150 square feet of floor space. If a home has a larger, more expansive roof with a steep pitch, it is recommended that the ventilation is increased by 20 percent.
There is one scenario where the ventilation for a metal roof is different. If you live in a humid climate where structures are susceptible to condensation, a metal roof can decrease the temperature just enough where a new dewpoint is established and can impact the attic or ceiling space of the home. This is where special considerations need to be made, so talk with a roofing expert for the best course of action.
The Benefits of Metal Roof Ventilation
A metal roof on its own ushers great energy efficiency; combine it with optimal roof ventilation and its efficiency is doubled! A properly vented roof better prevents energy waste — both in heating and cooling. It can also prevent moisture damage to insulation and drywall, securing its structural integrity.
Combats Moisture and Condensation
Moisture can accumulate both indoors and outdoors (especially in humid climates like Chicago). Indoor moisture primarily comes from bathing, laundry, cooking, plants, and stoves without vents. The moist air then travels upwards into the ceilings and into the attic. Once the air reaches a cooler climate, it condenses and then is able to create an unhealthy environment that spurs mold and mildew growth. A well-vented roof dispels this moisture and protects your home from damage.
Roof ventilation is advantageous for any home — especially when you install a new metal roof in a humid climate. Keep things dry and protect your home from condensation and biological growth when you better vent your roof.
To learn more about our metal roofing options, reach out today!