When it comes to roof maintenance, most homeowners know there are a few basic things that need to be done regularly to keep a roof in peak condition. Some of these things include clearing out gutters, trimming low hanging tree limbs, and addressing holes and damages caused by pests. But some homeowners don’t realize the importance of roof and attic ventilation or how it impacts energy bills and the overall structural integrity of your roof. Here are a few things you need to know about roof and attic ventilation.
What Is Ventilation?
Ventilation is the movement of air through a system of intake valves and exhaust valves. This system helps to keep airflow moving throughout your attic instead of letting outside air sit stagnant in your attic. Efficient movement of air through your attic helps regulate the temperature of your home. Soffit vents intake cool air that meets with warm air in the attic and it escapes through the ridge vents.
What Are The Two Different Types Of Ventilation?
Ventilation only works properly when air is flowing through a designated space. This air flow can be generated in one of two ways:
Mechanical ventilation requires power from a secondary source. This could be a simple fan or a power attic ventilator. If you have ridge vent, you do not want mechanical ventilation, as it can work against the natural flow.
Whenever possible, roof contractors try to establish natural systems of air flow through an attic. This can be done using a system of intake valves (soffit vents) and exhaust vents (ridge vent). A typical roof ventilation term regarding natural air flow is called the stack method. This happens when hot air rises in the attic and then escapes through exhaust vents in the roof. The only way the stack method can work is if there is a way for cooler air to enter the home and push the warm air up.
The movement of air through the attic happens thanks to the wind effect. As wind blows up against the house, it triggers the air in the attic to move as well. When the wind effect and the stack method work together, you have a natural system of roof and attic ventilation.
Benefits Of Roof Ventilation
There are many reasons why homeowners should be concerned about the way their roof is ventilated. Proper attic and roof ventilation will help conserve energy throughout their home and lower utility bills. During the occasionally cold South Carolina winters, adequate ventilation will prevent icicles from forming on your roof and reduce the damaging effects of ice damming.
In the hot South Carolina summers, proper roof ventilation will help regulate the temperature of your roof. If a roof gets too hot, it can cause the shingles to warp, which reduces their ability to protect your roof from the elements.
In addition, proper roof ventilation takes some of the work off of your air conditioning unit. When your AC doesn’t have to work as hard to keep the home cool, energy bills are lower. This is a significant reason why taking care of roof and attic ventilation is so important for homeowners.
Signs Of Inadequate Roof Ventilation
If you notice any of these issues on your roof or in your attic, you may have a ventilation issue:
- Damp insulation
- Crumbling or curled roof shingles
- Moisture of roof boards
- Moisture on rafters
- Dark streak on roof boards
- Dark or discolored decking
Call Homewerx Today
If you have a feeling that your roof or attic is not adequately ventilated, it’s time to call the pros. Homewerx can send out certified roofing contractors to inspect the condition of your roof and related components, like your ventilation.
Contact Homewerx today for a free roof evaluation.