Albany Roofers: Article About Attic Ventilation
Improper attic ventilation can cause problems for a roof. Albany roofers know this to be true and can help a homeowner improve their attic ventilation. Estimates say that nine out of ten homes have poor attic ventilation, so this is a widespread problem. Most homeowners are not aware that poor attic ventilation can significantly damage their roofs.
Attic ventilation refers to a constant flow of outside air through an attic. In the winter, this constant flow keeps the attic cool. Moisture from cooking vapors, showers and household appliances builds up in the attic and moistens the underside of the roof. When this moisture drips, it wets the attic insulation and diminishes its performance. A warm attic during the winter leads to ice damming when snow or ice on the roof begins to melt. This causes leaks in the home. Good ventilation removes or reduces the moist air before any damage can occur.
In the summer, proper attic ventilation allows natural air flow to prevent heat buildup in the attic. It moves hot air to the roof deck and out of the attic. This aids the insulation in blocking the heat from entering the rest of the house and allows the HVAC system to properly cool the house without using too much energy.
Poor or nonexistent attic ventilation in the roof can cause attic temperatures to rise as high as 150 degrees in the summer.
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That can cause damaged shingles and other roofing materials as well as a buildup of condensation. Mildew and mold can also develop in this type of environment. This could seriously reduce the life of your roof and cause you to replace before it would otherwise be necessary.
Pro roofers agree that proper attic ventilation brings the attic's temperature near to the temperature outside. There are generally two ways to properly vent an attic. One way involves the use of roof turbines, which spin using wind power. The other way requires ridge vents, which are cut into the peak of the roof and extend its length. A proper ventilation system requires intake vents as well as an exhaust component. Preferably, these should be in equal proportion. When insulating the attic, a homeowner should not cover any vents. This will prevent air from flowing properly from the roof to the attic.
Insulating an attic is very good for cutting energy costs. If the attic and the roof work together, then the home's temperature stays stagnant. It's not too hot in summer or too cold in winter. This allows the HVAC system to work properly. If a homeowner has insufficient attic ventilation, then their HVAC system will work overtime, causing energy bills to rise.
Contacting a roofing professional to insulate the attic is a wise choice. They will know what to do and how to do it. With a properly ventilated attic, a homeowner can know that they are getting the best out of their roof.