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Precision Roof Crafters: Need To Vent? So Does Your Roof!

at | Category: Roofing


Hot enough for you? The Houston area is seeing another scorcher, to be sure. And when you see your energy bills, you might need to let off a little steam, too! Perhaps the problem goes beyond your HVAC system. Maybe you should be “looking up!” Perhaps the answer isn’t insulation but ventilation! Attic ventilation might seem like a minor consideration, but when properly installed, it can extend the life of your attic and roof structure – saving you hundreds of dollars in repair costs.

Ventilation keeps attics cool during the warm weather. And with all of the humidity we have here, proper ventilation also helps prevent hot, moist air from warping the roof sheathing. It can stop shingles from premature deterioration. Fresh air in the attic brought in by proper ventilation makes a home much easier to cool, resulting in lower energy costs.

During mild, wet but colder months, ventilation helps reduce moisture to keep attics dry. Water can back up under shingles, damaging insulation, and rotting the roof structure itself.

What is attic ventilation?

As natural as inhaling and exhaling, your roof needs to intake and exhaust the air around and through it to maintain flow. It needs to move around. In fact,
”Ventilate” comes from the Latin word for “to fan.”In with the cool, out with the warm. Every time stale, overheated air in your home or attic is vented out and fresh air is pulled in to replace it, you have what is known as an “air exchange.” But ventilation is much more than a simple breeze blowing through your house. It’s a process that provides a steady, high volume of air movement. Think about it as a system of components, all sized and positioned to provide constant intake and exhaust of air.

So how much ventilation does your home need?

That depends on the size of the building. According to most building codes, you need one square foot of vent area for each 150 square feet of attic floor space. The minimum is one square foot for every 300 square feet of attic floor space if there is a vapor retarder or the space is balanced between the ridge and intake vents. Approximately fifty percent of the required ventilating area should be provided by exhaust vents to send the warm air out, and another fifty percent from the intake vents bringing fresh air in to provide a balanced ventilation system.

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If you are looking for a professional Houston Roofing contractor, please call us today at 1.800.ROOF.PRO or complete our online request form.



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