Why Is Flat Roof Ventilation Important?

You know attic ventilation is installed in homes with sloped roofs, but what about your flat roof? From TPO to EPDM, flat roofs also need to be properly ventilated to allow for air circulation and prevent some problems which might develop otherwise.

How a Roof Ventilation System Works

A roof ventilation system works by allowing for the circulation of air in the property. This involves removing overheated air from inside and pulling in outside air to allow circulation in the right amounts and directions.

The two main types of roof ventilation are:

  • Exhaust Vents: These are placed on the outside of your roof and allow warm, moisture-filled air from your home or ventilation spaces to exit.
  • Intake Vents: Placed on the lower part of the roof, intake vents are used to allow outside air to enter into ventilation spaces, forcing warm air to exit through exhaust vents.

3 Major Benefits of Ventilation for Your Flat Roof

1. Extend the Life of Your Roof

It’s natural to wonder why your flat roof needs ventilation. Ventilation helps balance the air underneath and outside the roof. This can extend your roof’s useful life and protect the structural integrity of your property.

Warm air rises and if your roof is unventilated or poorly ventilated, the air will collect beneath the roof. This accumulation of warm air can heat up your roofing deck and bake the top roof covering, which can cause it to age prematurely.

Also, a thin layer of condensation can form if the build-up of warm air causes a significant difference in temperature between your roof decking and the air outside. This could lead to water being trapped in the layers of your roof, causing mold problems and even structural damage to the roof deck and the framing.

2. Reduce Energy Costs

While we all want to stay cool inside during the summer, lack of ventilation causes HVAC systems, fans, and other appliances to overwork in order to maintain a constant temperature in your home. The area underneath your roof gets very hot in the summer, yet, insulation alone is not enough to prevent excessive heat from seeping into your home.

Proper ventilation allows warm air to find its way out of your home rather than stagnating inside. This significantly reduces the workload on your HVAC units, as well as heating and cooling costs.

3. Reduce Indoor Temperature Extremes

Your indoor temperature can become extremely hot when warm air rises and the sun is also beating down on your roof. The air at the top of your home will release thermal energy, which will seep down into the spaces below and cause increases in indoor temperature. What’s more, the insulation may hold the heat longer and continue to transfer it slowly into your living space.

When your flat roof is properly vented, there will be a continual flow of hot and cool air, which will help keep the indoor environment comfortable all year-round.

If you’re interested in a properly installed and efficient flat roof ventilation system for your Tampa, FL home, Imperial Roofing has you covered. We offer high-quality roof vent installation and flat roofing services. We use the best materials available and provide the highest level of workmanship. Contact us to learn more or get a free quote.