Most homeowners never think about attic ventilation. You may
not even know if your attic is properly ventilated. However, ventilation is an
integral component of your roofing system that protects it from moisture and
the damage it can cause. If you aren’t sure whether your roof has adequate
ventilation or you’ve experienced problems with mold, leaks, and ice dams in
the past, contact an experienced roofer to analyze your roofing system and
provide a ventilation solution that could save your roof.
What a Ventilation
System Does
Today, many homeowners are concerned with conserving heated
or cooled air produced by their HVAC system. They believe that a home should be
well sealed against air exchange that could put stress on a furnace or air
conditioner and raise utility bills. While these concerns are valid, some air
exchange in your home is necessary to protect its structure. A
properly-installed ventilation system consists of a balanced intake and output
of fresh air that is continually circulated through your attic. During warmer
months, ventilation can help to keep your home cooler by circulating air
through the upper level of your home to reduce the temperature of your roof.
When the temperature drops, attic ventilation reduces the moisture content
inside your attic to keep it dry. Moisture buildup inside attics is a widespread
problem throughout the U.S., with architects estimating that up to 90% of
American homes have attic moisture levels well beyond recommended limits.
Poor attic ventilation is a leading cause of extensive roof
damage, which is often caused by excessive moisture buildup. When moisture forms
beneath your roof, it can damage your roofing and your home. Moisture can cause
drips and leaks that damage your home’s structure, finishes, and floors. Plentiful
moisture also attracts mold and pests, which in turn damage your home and your
belongings. Moisture buildup and temperature differentials between your roof
and the surrounding air can also cause ice
dams to form. Ice dams prevent proper drainage of snow runoff from your
roof, causing melting snow to drain into your home and damage drywall,
ceilings, flooring, and other components of its interior. The best way to
prevent ice dams is to ensure your roof is properly ventilated. Ventilation
prevents extreme temperature differentials between your roof and the air
outside your home. Additionally, proper attic ventilation also plays an
important role in protecting your roof and lowering your cooling bills during the
summer. Roofing materials can be damaged by extreme heat, while hot air trapped
inside your attic can cause temperatures to rise elsewhere in the house. By
circulating air throughout your attic, a ventilation system reduces the heating
effect on your roof, also reducing the amount of heat transferred from your
attic to the rest of your home.
Do you have more questions about roof ventilation and
repairs in Alexandria, Fairfax, or Bethesda? Visit
our website to find more information about roofing solutions and repairs in
your area or request a service
estimate. You can also contact a roofer online to get personalized answers,
advice, or schedule roofing services for your home or business.
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