Many homes in North America do not have proper attic ventilation. Why? Because most people are unaware that attic ventilation can impact the longevity of their entire home!
In the summer, improper ventilation can cause attic heat to build in excess of 160°F. This super-heated air eventually penetrates the ceiling insulation into the living area below.
Types of damage that can result include:
- Roof deck warping and rotting of the wood frame
- Premature aging of your roofing system (“fried” shingles)
- Warping, cracking or breaking down of wood framing
- Damage to siding, exterior or interior paint, and wallpaper
- A properly ventilated attic can help reduce the load on your air conditioner by moving the super-heated air out of your attic before it builds up and causes damage.
In the winter, various household appliances, bathtubs, showers, and cooking vapours can contribute to excess moisture build-up. Improperly ventilated attics will allow this moisture to collect and cling to the underside of the roof. The moisture will condense and fall, soak the attic insulation and reduce its efficiency.
- Additional structural damage can include:
- Mildew growth
- Buckling of shingles and felt
Finally, attics should be properly ventilated to help prevent ice dams in cold northern climates. During the winter, ice and snow on a roof will melt and run down the deck to the cooler eaves. This run-off can re-freeze, create an ice dam that may force water back up under the shingles and leak into your home — causing hundreds or thousands of dollars of damage to your ceilings and walls.
Adequate attic ventilation reduces the amount of initial melting that occurs on your roof, thereby reducing the chance that ice dams will form.
If you suspect your home lacks adequate Attic Ventilation call Statewide Roofing (405) 790-0109 for a free consultation. Need Financing? Ask us about our financing options.