How a Roofing Ventilation System Works

Amazing! How a Roofing Ventilation System Works

Information about How a Roofing Ventilation System Works

Phil Puccio

Every time you inhale, inhale and exhale. Your home may not have lungs, but it also needs to breathe through an inlet and an outlet. The most important components of a roof ventilation system, the supply air and the exhaust air, work together to circulate fresh air into the roof space of your house and warm air out of it.

Why is a roof ventilation system important?

GAF roof ventilation system

A well-designed roof ventilation system ensures a continuous flow of air.

In many modern homes, insulation, multi-glazed windows, and other materials keep harsh weather and extreme temperatures out. This restricts the flow of fresh air and hot air can collect under the roof. Proper roof ventilation prevents hot air from building up in the attic, which lowers the energy costs associated with cooling. It also prevents premature roof failure from heat damage to the shingles and underlay. Without a proper roof ventilation system, evaporated water from activities such as cooking, cleaning, and breathing will build up in your home, which can cause allergies, mold problems, and condensation damage. If your home is suffering from excessive moisture, condensation, or mold growth, you may need to check out a roof ventilation system.

Ventilation vs. air leakage

The uncontrolled and unintended escape of air is air leakage. Drafts, rattling windows and suddenly freezing rooms in winter are examples of this. When warm air, and especially hot air, escapes through the roof of your house in winter, snow can melt and freeze again overnight, leading to the formation of ice dams. This loss of hot air also means your heating systems have to work a lot harder to reheat the house, which costs you money. Likewise, the loss of cool air from your cooling system and the accumulation of warm air in your attic in the summer will add to your energy bills. Ventilation comes in two forms: direct ventilation, e.g. The greatest form of indirect ventilation should be your roof ventilation.

This is how a roof ventilation system works

A roof ventilation system works with a supply and an exhaust system to keep the attic as cool as possible in both summer and winter. There are many different products that can be used to install the best ventilation system for every home. In most houses, a roof ventilation system with air intake upwards through the eaves and exhaust air through the ridge ventilation ensures ideal air circulation. With certain types of roof, such as hipped roofs, ridge vents do not provide enough exhaust air in square centimeters and roof louvers must be used instead. This is why you need an experienced roofer who will evaluate your roof and recommend the best roof ventilation system for your home.

To optimize a roof ventilation system, first measure the loft area and calculate the square meters of living space. One of the common rules for installing a ventilation system is 3 x 100. For every 100 square feet of floor space, which would be 10 ′ x 10 feet, you would use 3 square inches of inlet and outlet. Following this rule will ensure that the roofing ventilation system has the correct amount of inlet and outlet. Otherwise, airflow may be interrupted and your home will not get enough airflow.

Eaves and reveal openings

The ventilation along the eaves is usually done with diffusion-open ventilation strips below the eaves, which let moisture through, or with brick fans placed at regular intervals. Ideally, soffit ventilation that extends the entire length of the eaves provides the best intake flow. At least one ventilation kit on either side of the attic can let air in from one side and exit through the other, dragging in moisture and other environmental debris. However, if you have an overcrowded or cramped attic, it’s time to add ridge vent.

Ridge ventilation

By installing a continuous ventilation strip or ridge vent on the roof ridge and the roof (top joint of the triangle), hot, humid air can escape through the roof. As the hot air escapes, it draws fresh air up through the eaves, creating a continuous flow of air. One of the added benefits of a ridge vent is that it blends in with the roofline.

If you’ve been toying with the idea of ​​buying attic fans in the summer because your attic is BLAZING hot, or if you are worried about the freezing attic temperatures in winter, this podcast has more information on attic / roof ventilation.

If you think your home is short of breath, has poorly ventilated roofs, or want to make sure that a new addition in your living space has adequate ventilation, contact All Weather Tite. Our experts can provide a free estimate, explain the correct roof ventilation and get to the bottom of current ventilation problems in your home.

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Original Source: https://allweathertite.com/2018/04/roofing-ventilation-system/
Category – Roofing

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