Roofing Houston: Frequently Asked Questions About Roof Ventilation

Not only is roofing ventilation important, it’s necessary. Without roofing ventilation, hot air and humidity will be trapped within your attic, damaging your home and your roof from the inside. This can significantly reduce the lifespan of both your roof and your home. This can then lead to costly repairs and replacements. Some of the most common problems caused by the lack of proper roof ventilation are the following:

  • Roofing Failure
  • Blistering
  • Buckling of Roof Deck
  • Rotting and Warping in Wood
  • Insulation Damage

Roofing ventilation becomes even more invaluable during the summer months when temperatures in the roof space can reach up to 30-45% more than the ambient indoor temperature. Radiant heat from the sun increases the temperature of the roof deck, the roof space, and eventually, the interior of the house. This alone can lead to higher cooling bills, and high indoor humidity. Excessive heat is likewise proven to be especially harmful to asphalt shingles.

By having a licensed contractor install proper ventilation in your roof, not only can you avoid these problems, you can also increase the lifespan of your roof and your home.

Types of Roofing Ventilation

There are a number of ways you can ventilate your roof. However, a ventilation scheme will generally fall into two categories:

  • Passive Ventilation – This method utilizes air convection and behavior or air in different pressures. This configuration works by placing vents along the ridge of the roof. Intake vents are likewise placed along the soffit.
  • Active/Powered Ventilation – An alternative to passive ventilation, active ventilation utilizes mechanical ridge vents that push air out of the attic or roof space.


Improper installation or roofing vents can be as harmful as not having one. Only hire a licensed roofing contractor capable of setting up the right ventilation scheme for your roof. Choose All-Tex Home Improvement Services for quality roofing Houston projects, repairs, and installations. Call us today for pricing quotes and on-site roofing assessments.