The Significance Of Proper Roof Ventilation A roof must be sturdy. It should be able to resist and endure the external threats such as weather extremes, hail, debris and natural wear and tear. Along with durability, it must have strong structural integrity and should contribute to the visual aesthetics of the property. A roof must also be well insulated so it doesn’t allow the attic and subsequently the property to get too heated up or too chilly during summers and winters.

The roof must be well insulated and very well ventilated to avoid numerous problems in your home.

  • Poor ventilation can lead to warping of roof decks. This is primarily due to the buildup of moisture in the attic that damages the roof deck or the wooden fascia. The roof deck may begin to rot after a certain point in time, especially if there is excessive moisture buildup and subsequent condensation.
  • The structural integrity of the roof can be threatened. The adhesives will deteriorate due to the same effect of condensation of moisture. All metal fixtures will be vulnerable to rusting if there is excessive moisture and stale air, and the entire roof can be poised for a much larger problem.
  • Moisture buildup in the attic will jeopardize the insulation. The insulating material will deteriorate and there will be a considerable dip in the R-value.
  • Poor ventilation will lead to the growth of mold and mildew in the attic and in other parts of the property. Lack of proper ventilation will also pave the way for allergens to dominate the air space inside the property.

Ventilation Calculator – This Calculator will help you to determine the proper amount of ventilation based on best roofing practice guidelines. To use it simply enter the dimension or square footage of your attic and click ‘Update.’ The calculations are done for you. The quantity numbers are rounded up or down for your convenience.