Home-Improvement While the idea of allowing an attic to chill out in the dead of winter may sound perplexing, good attic ventilation is an important part of roofing. Proper attic ventilation is essential to extending the lifespan of asphalt shingle roofs by preventing moisture build-up and ice dams in the cooler months. Additionally, adequate ventilation can make a home more .fortable and lower air condition operating costs in the warmer months. Mold, mildew, wood rot, rusty nails, roof deterioration, peeling exterior paint, and energy losses are all problems directly contributed to inadequate attic ventilation. An improperly vented attic allows for trapped air and moisture build-up. In the winter months, ice damming is an especially serious issue. Ice damming occurs when an attic is too warm causing the snow to melt off the roof and to re-freeze in the gutters. This causes severe damage to the roof and requires a costly fix. Condensation can form in the attic from washing machines, dishwashers, showers, driers, and tubs, and its effects appear similar to a roof leak. A drafty, cold attic is ideal in the winter. As far as keeping the rest of the house warm, good insulation will do the trick. In the summer months, proper ventilation in the attic allows for temperature control, keeping energy costs down. An unventilated attic can reach temperatures over 150 degrees F! A ventilated attic is significantly cooler. The lifespan of shingles is also increased when not allowed to overheat, as is what happens when an attic is not adequately vented. There are several options for attic ventilation. Many houses incorporate gable vents- a louvered and screened vent positioned at or near the peak of the sidewall of the attic. This type of ventilation provides decent ventilation, but does not allow for uniform air movement. A fairly simple retrofitting solution for a house with gable vents is the addition of a ridge vent. A ridge vent is a screened replacement for the uppermost shingles at the peak of the roof. Gable and ridge vents provide adequate and fairly uniform air movement and are sufficient in houses without excessive moisture build-up issues. By far the best ventilation system, however, is a .bination of soffit and ridge vents. A soffit is the overhanging area of a house. A soffit vent is fashioned on the underside of the soffit. They point downward and therefore keep snow and rain out, as such are less likely to allow soaking of the insulation or drywall. Soffit vents serve as inlets and outlets, protecting against moisture in the attic, keeping crawlspace and/or basement dry and tightening the ceiling against air leak. The use of soffit and ridge vents allow for superior ventilation in the attic and uniform air movement. However, houses not constructed with soffits require costly modification in order to equip with this type of ventilation system. Whatever ventilation system may be in place, remember not to allow insulation to .e into contact with the roof or cover the soffit. Additionally, resist the temptation to close the attic vents in the winter. Moisture build-up will not only damage the roof structure, but can also destroy personal items located in the attic. A general contractor is the best option for undertaking attic ventilation upgrades as they are licensed, insured and able to raise, lower, repair or create a new roof as necessary. Contact Salt Lake City Construction .pany for your FREE, no obligation quote TODAY! About the Author: 相关的主题文章:

 

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