Most homeowners know that their attic contains vents – and that the vents are there to help promote good air flow up there. But what most homeowners don’t know is how the roof ventilation system works, or what to do if it’s not working properly.
Here’s the scoop.
Your roof should be equipped with a ventilation system that helps it maintain a constant temperature and vent out moisture. Without a good system in place, your roof will deteriorate faster, your energy costs will go up, and you’ll feel temperature extremes inside your home.
There are two main ways to vent an attic or roof deck: through mechanical means, where a power source moves the air, or through natural means, where air circulates naturally between vents. Hot air rises, which creates higher pressure at higher points in the attic; the hot air can escape an exhaust, but only if there’s an inlet located lower than the escape point that lets in cooler (and lower-pressure) air from outside. Wind can help push in cooler air, too. Respectively, these are known as stack effect and wind effect.
The two main components of a roof ventilation system are intake and exhaust vents.
Intake vents are typically located on the edges of the roof, and roofers can install them:
Exhaust vents can be tough to spot on the roof. They’re most commonly located on ridges (those are called ridge vents), but some homes feature wind turbines and power attic ventilators – and you can usually see them.
Related: 5 common roofing problems in Frisco
When your roof vents are working properly, it’s business as usual. You’ll have a sturdy, long-lasting roof that’s not falling apart in your yard (or worse, into your home).
But you can tell if your vents aren’t working properly – and some of the biggest red flags include:
If you suspect your roof vents are failing, the best thing you can do is schedule a free roof inspection. You need an experienced roofer to examine your vents and determine whether they’re working properly – because if they’re not, your roof isn’t protecting your home the way it should. Poor or non-working ventilation can cause your roof to age faster than it normally would, and it paves the way for damage that can result in extensive roof repair or complete roof replacement.
Experts recommend having your roof inspected at least once a year (and more often if your home has been in the middle of a major storm).
We’ll be happy to send a roofing expert to your home at a time that works for you. An inspection can help you head off issues before they become major problems – and we’ll look closely to determine whether your roof ventilation is working properly. Schedule your free roof inspection today.
Most homeowners don’t give roofing – or, specifically, attic ventilation – a lot of thought. But if you’re like most people, you’ve heard these attic ventilation myths that don’t have a shred of truth to them.
Some of the most common – and ridiculous – attic ventilation myths include:
Let’s take a closer look at each of these myths.
Hot air rises, so it makes sense that heated air from your home travels into your attic and right out of your roof’s exhaust vents – right?
Wrong. Roof vents don’t work that way. The air in your attic should never be heated (or cooled, for that matter) by your HVAC system. Usually, when warm air escapes your attic during winter, it’s because the insulation isn’t doing its job. The temperature in your attic should be pretty close to outdoor temperatures in most circumstances, unless the sun is heating things up.
Having a few exhaust vents on your roof doesn’t mean that your attic is properly vented. A good ventilation system requires both intake and exhaust vents, and sometimes those vents are blocked or damaged – and when that happens, the system can’t work properly. You should have your roof inspected at least once a year (more often if it may have been damaged in a storm) to check on your ventilation system and ensure it’s working properly. When the ventilation system fails, your roof is prone to serious damage that could even lead to the need for a complete roof replacement.
You do need roof vents in hot climates. You also need them in cold climates, and climates like ours where we experience all four seasons.
A lot of people mistakenly believe that the sole purpose of an attic ventilation system is to make a building more energy-efficient in the summer, when hot air travels up and moves out of the house. However, it’s about more than hot air – it’s also about moisture. A good ventilation system moves moist air out of the attic and brings in cooler, drier air. If your ventilation system is trapping damp air in your attic, you’re going to face mold and mildew problems, and the components of your roof are going to be prone to damage and rot.
Related: Leaky roofs cause mold growth
If you think your roof’s ventilation system isn’t working properly, you probably need a free roof inspection. We can send a technician to your home at a time that’s convenient for you, and we’ll check your roof vents, shingles and other roofing components to make sure the entire system is working together to protect your home and your family.
If you need roof repairs or are thinking about a complete roof replacement in Frisco or Denton, it’s normal to have a lot of questions – and we can tell you that the best way to get answers is to schedule a free roof inspection with a residential roofing company. Your inspector will be able to answer questions about your roof, identify problem areas that you need to repair, and tell you how much repairs or replacement will cost.
But if you have questions right now, here’s what you need to know.
If you’re like most people, you don’t really think about roofing companies much – but there are five things that can happen to your roof that may make you want to put us on speed-dial. Here’s what you need to know.