Ventilation
Poor Attic Ventilation Can Ruin Your Insulation, Destroy Your Shingles and Raise Your Energy Bills
- It is estimated that 9 out of 10 homes in North America do not have proper attic ventilation
- In the summer, improper ventilation can cause attic heat to build in excess of 160° F
- Improperly ventilated attics allow moisture to collect and cling to the underside of the roof
- Additional damage can include roof deck warping or rotting, and mold growth
The Mold Factor
- A large percent of mold is caused by inadequate attic ventilation
- A 300% increase in the asthma rate over the past 20 years has been linked to molds
- Who are most likely to be affected by mold?
- Infants, children and the elderly
- Women who are pregnant
- Individuals with respiratory conditions, allergies and asthma
- Persons with weakened immune systems
What You Should Know About Attic Ventilation
- In the summer, attic ventilation can help prevent heat buildup
- In the winter, attic ventilation can help prevent moisture buildup, which helps prevent wood rot, mold, mildew and poor indoor air quality
- Manufacturers require proper venting to validate their warranty. New shingles are more watertight and trap in more moisture.
