Ventilation allows outside, cooler air to enter the attic and push the hot air up and out. A well-ventilated attic breathes-in (intake ventilation) and breathes-out (exhaust ventilation) through vents located at the lowest and highest parts of your attic.

In the world of construction and building, one of the essential aspects of a well-built home or building is proper ventilation. Ventilation is crucial in ensuring that the indoor temperature is comfortable, the air is clean and fresh, and the structure is protected from the harmful effects of moisture and humidity. One excellent way to keep your home properly ventilated is by using attic fans. We'll be discussing everything you need to know about attic fans and why they are necessary for building or construction projects.

Gable Mount Fans

A gable mount fan is a ventilation device designed to mount on the gable of a building. It works by drawing in fresh air from outside and exhausting hot, stale, and moisture-laden air from inside the building. These fans are installed in the attic or gable end, and they operate quietly and efficiently to regulate the temperature and maintain the air quality in the building.

Gable mount fans have numerous advantages over other ventilation systems. Some of these benefits include:

• Lower energy consumption: Gable mount fans consume less energy than other ventilation systems, making them a cost-effective option for your building.
• Easy to install: Gable mount fans are easy to install and require minimal maintenance. They come with detailed instructions, and you can easily find an expert to help with the installation process.
• Improves indoor air quality: Gable mount fans improve the air quality in your building by removing harmful pollutants and allergens, thus keeping the indoor environment healthy and pleasant

Roof Mount Fans

Powered attic roof ventilation helps reduce the temperature in the attic by expelling hot air from the attic and drawing in cooler air from outside. This, in turn, reduces our reliance on air conditioning and, ultimately, saves on energy costs.

• Lower energy consumption: Maxx Air roof mount fans have a built-in thermostat to run the unit only when the attic environment surpasses a set temperature. They can also help reduce the workload on the air conditioner by removing hot air and increasing the amount of cooler air entering the house. This can decrease energy consumption, which is beneficial to the environment and your wallet.
• Improves indoor air quality: Attics can be a breeding ground for mold and mildew due to inadequate ventilation and moisture buildup. Poor indoor air quality caused by mold spores can trigger respiratory problems and allergies. Powered attic roof ventilation aids in removing excess moisture and maintaining a healthy balance of air in our homes. 
• Prolongs the life of roofing components: Extreme temperatures in the attic can cause shingles to warp and crack, leading to leaks and expensive repairs. High humidity in an attic space can cause premature rotting of the wooden structures, such as rafters and joists. Roof fans can help regulate both the temperature and humidity of an attic to keep these components in good condition. 

Many regions have building codes that require homes to have adequate ventilation to prevent moisture damage, mold growth, and excessive heat buildup. Powered attic ventilation provides an effective solution to these requirements while improving energy efficiency and reducing indoor air pollution.

There are a few factors to consider, which include:

• Building size: The size of your building will determine which size of the fan you need. Larger buildings require bigger fans to achieve effective air exchange. The Federal Housing Administration and most state and local building codes recommend a minimum of 1 square foot (144 sq. in.) of ventilation per 300 square feet of attic floor space. Always check your local building code regulations, as you may need to provide 1 square foot of ventilation per 150 sq. feet of attic space in some instances.
• Ventilation requirements: Consider the ventilation requirements of your building. Select a fan with enough capacity to provide adequate ventilation. As a general rule, attic temperatures should be within 15°F of the outside air. The most efficient attic ventilation system—and the one recommended by roofing engineers—is a balanced system of 50% intake vents (like soffit vents) and 50% exhaust vents (like roof and gable fans), known as the 50-50 Rule, which allows the most efficient and constant airflow through the attic.