6 Common Ridge Vent Problems And How To Address Them

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Ridge vents help to protect your roof and the entire house by allowing warm and moist air to escape from the attic. The warm and moist air naturally collects in the attic of your house.

The moisture in the air causes your roof structures to decay. Therefore, roof vents are critical roofing components of modern houses. However, your roof vent can experience severe problems. Here are the most common ones and how you can fix them.

But before that, let dive into some of the risks of having faulty ridge vents

Risks of Having a Faulty Ridge Vent

You cannot ignore ridge vent problems, even if they seem minor. Here are some of the risks of ridge vent problems that you should watch out for.

  • Leakages: Water from the rain may seep through your faulty ridge vent. Over time, the water will accumulate in the attic and cause rots. Rotting will destroy your roof’s important wooden structures, thus posing a severe safety danger to you over time.
  • Molds and mildew growth: Ridge vents allow warm and moist air that accumulates in your attic to escape. When the ridge vent is not working correctly, the warm and moist air will accumulate in the attic. The accumulation of stale air in the attic will trigger the growth of molds and mildew.
  • Physical contaminants: If your ridge vent has spaces that allow small particles to seep through, the quality of your indoor environment may be compromised. Contaminants can easily seep through the attic and find their way to your indoor environment if the ridge vent is faulty.

6 Common Ridge Vent Problems And How To Address Them

1. Faulty Installation

Although installing ridge vents is not particularly technical, faults can occur. Your roofing technician may use the very short or wrong type of nails when securing the ridge vent on the top of the roof. If the ridge vent is not properly secured, it will detach from the deck when strong winds blow over time.

It is also possible for your contractor to fail to spread the ridge vents sufficiently when installing them. Your ridge vents are designed to overlap sufficiently to prevent leakages and other related problems.

To prevent this ridge vent problem, ensure that your roofing technician has the right type and size of nails during the installation process. Also, your roofing technician should ensure that the ridge vents overlap correctly during the installation process. If they do not overlap properly, leakages will occur as well.

2. Improper Sealing

Improper sealing is another common ridge vent problem. Ridge vents are joined together by a special sealant. The sealant seals all the spaces between the ridge vent pieces to ensure that neither moisture nor solid contaminants can seep through the ridge vent into your attic.

The sealant should thoroughly cover all the sections of the ridge vent. However, it is common for your roofing technician to miss this crucial detail. When there are small gaps along the space covered by the sealant, rainwater can slowly sip through and find its way into your attic.

To prevent improper sealing instances, hire a certified roofing technician to complete the ridge installation process for you. Getting a certified technician guarantees that the person understands such common pitfalls of ridge installation and can avoid them. You may also have to carry out a detailed inspection of your ridge vent regularly. Let a technician do this for you to ensure that the sealant is intact.

3. Ridge Vent Cracks

The most common brands of ridge vents are made of plastic materials. The plastic is usually specially prepared to withstand the effects of the elements. Thus, ridge vents that are made from plastics can effectively remain functional for a relatively long period.

However, the continuous exposure to the effects of the elements causes wear and tear. Repeated heating and cooling because of the weather patterns exposes your ridge vent to deterioration. Over time, the strength of the plastic fails. Small cracks, which eventually grow into huge gashes, begin to appear on the surface of your ridge vent.

You can do nothing to prevent wear and tear from occurring on your plastic ridge vent. But you can delay the process as much as possible by choosing metallic ridge vents instead of plastic ones.

4. Ridge Vent Blow Offs

Ridge vent blow-offs are one of the most severe problems of ridge vents. Your ridge vent parts may get blown off by powerful winds. The ridge vent may be entirely or partially blown off. Nevertheless, the attic of your house will be exposed to the elements if the ridge vent gets blown off.

One of the ways to prevent your ridge vent from getting blown away by the wind is to use the most appropriate nails during the installation process. Consider the weather patterns in your region when choosing the size and type of the nails. If you live in a highly windy region, use long enough nails to secure your ridge vent properly.

Also, you can conduct regular inspections of your ridge vent as a strategy of preventing blow-offs. During the inspections, you will detect any nails that may have started to give way long before the blow-off occurs. Using this approach will help you solve the problem early enough and prevent your ridge vent from getting blown off after some time.

5. Ridge Vent Mold

Mold growth in your attic can be a big menace. When mold grows in the attic, it starts to cause damages to the wooden structures of your roof. The damage progresses fast when left unchecked.

Mold growth in your attic occurs when the house’s moist and warm air does not find its way out of the roof through the ridge vent. Also, when moisture from precipitation finds its way into your attic, it may cause mold growth.

The best and most effective way of preventing ridge vent mold is to ensure that the ridge vent is installed correctly. Proper installation helps to prevent leakages. Your roofing contractor will detect simple problems like when the sealant is not correctly placed on the ridge vent.

6. Ridge Vent Condensation

Condensation may occur when there is a heavy downpour. The air temperature difference between the outside and inside causes the air trapped in the attic to change into liquid form. This causes all kinds of problems, including rotting and the growth of mold.

Suppose you stay in areas that regularly receive heavy downpour, ensure that you constantly inspect the status of your ridge vent. If you notice mold growth, this may have been caused by condensation of the warm and moist air that is found in the attic. Ensure that your ridge vent is working perfectly, so that warm and moist air is not trapped in the attic.

Also, ensure that your roofing contractor correctly installs the ridge vent. All components should be working so that the warm and moist air accumulates in the attic finds its way to the outside.


Ridge vent problems can quickly interfere with the Indoor Air Quality of your house as well as cause damages to the wooden structures of your roof. If your roof’s wooden components get damaged, you will be forced to incur expensive repair costs to save the entire roof.

The primary step of dealing with all types of ridge vent problems is to ensure that the installation procedure is completed correctly. Let your technician use the right type and size of nails to secure the ridge vent properly on the roof.

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