Why Roof Ventilation Matters More in Arizona’s Desert Climate
Arizona’s residents are all too familiar with the state’s signature climate.
This desert state is classified as arid to semi-arid.
However, it’s also prone to monsoon weather, bringing heavy summer rains upon the state from June to early September.
Roof ventilation is extremely important for people living in a state that experiences prolonged dry and wet seasons.
Homeowners also need reliable and experienced roofers to install, maintain, and repair desert home ventilation when necessary.
Learn more about efficient roofing systems in Arizona in this complete guide.
Signs You Need Better Desert Climate Roof Ventilation
By definition, roof ventilation is a built-in system that enables airflow through a house’s attic space and roof to control moisture and temperature levels.
In a state like Arizona, ventilation systems are imperative to preventing moisture-related damage and overheating.
Potential hazards from inadequate ventilation include:
- Mold from moisture buildup
- Damage to roofing shingles
- Rotting wood from water damage
- Structural damage to the home
- Excessive heat
The last point speaks to the importance of proper ventilation for HVAC system efficiency.
Without ventilation, HVAC air conditioners are forced to work overtime to cool the home as cool air escapes from the house.
Likewise, in colder months, HVAC heat loss is more likely with inadequate ventilation.
Rising utility bills are another sign to watch.
HVAC systems that are forced to work hard to heat or cool the home are going to use more power.
Types of Roofing Ventilation Systems
There are two primary types of roof ventilation systems, active and passive systems.
An active system pulls in air from outside the home and into the house.
Next, the system forces inside air out of the home through exhaust vents.
An active system maintains airflow circulation with a system of exhaust vents.
Passive ventilation systems don’t require exhaust vents.
Rather, the roof and attic construction is built to enable airflow naturally.
Passive ventilation system vents don’t feature moving parts like exhaust vents.
Therefore, they require little to no maintenance.
Box vents are the most popular example of a passive ventilation system while turbines are the most recognizable example of an active ventilation system.
If you have a small attic space, box vents may suffice; however, the more square footage you have, the more box vents you’ll need for adequate airflow.
An active ventilation turbine vent can cover more square footage, making it a better option for large attics.
More Vents Types to Know
There are three more types of active vents to know.
Ridge vents are another ventilation system regularly seen in Arizona homes.
These vents are constructed into the ridge of the roof, running the full length of the ridge.
Ridge vents are a popular aesthetic choice because they don’t stand out like turbine vents or box vents.
On their own, ridge vents are a passive ventilation system.
Incorporating a baffle into the ridge vent system converts it into an active ventilation system.
A baffle is a chute that actively circulates air in and out of the attic.
Baffles are also good at keeping out wind and storm debris, critters, insects, and rain.
Another active vent to know is the power vent.
Like a turbine vent, a power vent is also installed on the roof’s exterior.
It requires electric power to extract and expel warm air out of the attic.
A power vent is less conspicuous than a turbine vent which makes it a popular aesthetic choice among homeowners.
Since this vent requires electric power, a professional installation is required.
You may need to hire an electrician to ensure your home is wired properly before calling a roofer to install the power vent.
Solar ventilation systems are becoming more popular with homeowners as solar panel installations continue to rise.
It’s a type of active system since it requires a solar battery.
The solar battery does need a little time to recharge when it runs out of solar power.
Improve Indoor Air Quality
Desert climates can pose issues with indoor air quality which impacts respiratory health, allergies, and energy.
Without proper ventilation, hot desert winds (and dust devils) can attract airborne dirt and debris into the home, causing breathing issues, fatigue, and a higher risk of seasonal allergies.
An Arizona roof cooling system works with HVAC air conditioners to regulate indoor temperatures and air quality.
During wet seasons, these systems work together to control moisture, preventing respiratory illnesses due to mold.
How to Install a Desert Climate Roofing Vent System
The first rule of thumb in ventilation installation is to avoid DIY.
Installing an active or passive vent system on your own can pose risks to roofing materials, structural elements, attic insulation, and pest control.
Even box vents should be installed by a professional.
Don’t perform your own electrical wiring.
DIY wiring jobs can lead to short circuits and fire hazards.
Heights also pose health risks if you’re not trained in roof work.
The first step is to talk to a professional roofer about your ventilation needs.
They’ll go over the options available for passive and active vents.
You can also include a new ventilation system when requesting a full roof replacement.
While considering new vents, take stock of the condition of your roof.
It may be time for a roof cleaning, repair job, or a partial or full replacement.
A roofing technician can inspect your roof for any needed maintenance.
Financing is also available to homeowners who require substantial roofing work like full replacements with ventilation systems.
This is an important point to consider when prepping your home for Arizona’s notorious desert summers and monsoon rains.
Older roofing systems are more prone to water and dust wind damage, resulting in costly repairs.
Upgrade Your Arizona Attic Ventilation for a Desert Climate
Don’t wait until an extreme weather spell takes a toll on your roof ventilation system.
Take action now to weatherproof your desert home with a ventilation system that’s ideal for Arizona’s climate.
Take note of the above tips when discussing options with your local roofing expert.
Established in 2013, AZ Roofing Works is a licensed, insured, and bonded roofing company servicing the Phoenix Valley community.
We pride ourselves on our extensive knowledge base, expert craftsmanship, and customer service.
Contact us today to learn more about our roofing systems. We’re here to help!
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