An Attic That Breathes
Benefits of a proper roof ventilation
- Extends the Life of Your Roof
- Saves Energy
- Prevents Mold
If you want your roof to last, you need an attic that "breathes." The problem is, an estimated nine out of 10 homes don't have a properly balanced attic ventilation system in place. As a result, the average roof lasts only 10 to 12 years, even though most roofing shingles are made to last 30 years or more. In fact, the number-one reason for premature roof failure is inadequate ventilation.
What most homeowners don't realize is that without proper ventilation, most manufacturers' shingle warranties are void. That means those same nine out of 10 homes may never have had warranty protection on their roofs.
What Happens with Inadequate Ventilation?
Problems caused by inadequate ventilation may not become evident for years to come, and it can ebe very difficult to get most installers to come back and correct deficiencies in the original installation. Inadequate ventilation can result in higher energy costs, structural damage, excess moisture and ice damming.
Higher Energy Cost:
- Air conditioning and heating systems are overworked.
- Plywood decking can come apart.
- Roof framing can warp or buckle
- Vinyl siding outside the home can warp or buckle due to excessive heat in the attic.
- Shingles overheated from underneath can be damaged (damage to shingles caused by improper installation is not covered under warranty).
- May create mold and mildew buildup
- Condensation can cause insulation to become moisture-soaked and compacted, greatly reducing its efficiency.
- Paint on interior and exterior walls may blister and peel.
- Icicles can build up in gutters and eventually tear them off, causing serious damage to your home.
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