Asked by: Sushil Griesbaum
home and garden home appliances

Do ridge vents work?

Last Updated: 15th May, 2020

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The combination of a ridge vent along with continuous soffit vents gives you a flow through of air similar to the way a chimney works. Even without soffit vents, a ridge vent is much more effective than gable vents.” Hammer says, however, that blocking gable vents isn't necessary.

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Thereof, are ridge vents worth it?

The majority of roofing experts agree that ridge vents are the most effective and cost-effective roof vents available. Soffit vents may leave air trapped at the top of your attic. Most effective ventilation uses a ridge-and-soffit continuous ventilation system, but even these designs can vary from roof to roof.

Subsequently, question is, how does roof ridge vent work? A ridge vent is an important part of a home's roofing system. Installed at the peak of a sloped roof, the ridge vent allows damp, warm air to escape from the attic. A properly installed ridge vent increases energy efficiency and prolongs the life of your roof.

In respect to this, how much do ridge vents help?

Roof ridge vents can reduce indoor air pollution levels. About two-thirds of that time happens at home. The only problem with this lifestyle is that the quality of your indoor air can be up to 5 times worse than the outside air. There are some homes where the indoor air quality is 100 times worse.

Do ridge vents leak?

With proper installation and care, ridge vents should not leak. However, improper installation leads to leaky vents. In some cases, installers will use the wrong nails or shorter nails to secure the vents to the structure. Another problem that can lead to leaking roof ridge vents involves sealant.

Related Question Answers

Alvydas Muralha

Professional

Should I put a ridge vent on my roof?

The combination of a ridge vent along with continuous soffit vents gives you a flow through of air similar to the way a chimney works. Even without soffit vents, a ridge vent is much more effective than gable vents.” Hammer says, however, that blocking gable vents isn't necessary.

Olexiy Larrave

Professional

Which is better ridge vent or turbine?

A ridge vent is a passive system and offers less air movement, and in moderate climates this style tends to be sufficient. In more extreme climates, one or more turbines will provide better circulation. For optimal performance, ridge vents require soffit venting to bring air up and out the top of the roof.

Tantica Matocha

Professional

Do you need an attic fan with ridge vents?

Most homes already have some passive attic venting built in. Cool air enters the attic through soffit vents in the eaves. Even if your roof already has ridge vents and plenty of ventilation built in, it's a good idea to install gable fans or roof fans to help blow hot, humid air out of the attic.

Marsel Monteleone

Explainer

How do you tell if your attic is properly ventilated?

Here are four signs of an unventilated or under ventilated attic:
  1. Look at your eaves and roof.
  2. Touch your ceiling on a warm, sunny day.
  3. Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation.

Heraclio Paesold

Explainer

Can you have too much attic ventilation?

It's possible to have too much exhaust ventilation, but you cannot have too much intake ventilation. If there is more intake ventilation than the attic's square footage requires, it's not problematic because any excess intake converts to “exhaust” on the leeward side of the house.

Maelys Serrano De Cruz

Explainer

Can a ridge vent be installed on an existing roof?

There are two primary types of ridge vents: shingle-over vents and aluminum vents. A shingle-over vent is installed over the ridge of a roof and is covered over by asphalt shingle caps that match the surrounding roof shingles. This project requires work on a tall ladder and the roof while using hand and power tools.

Procopio Viader

Pundit

What is the best roof vent for a house?

The following are some of the best roof vents available in the market and you should consider them.
  • Heng's 71111-C1G1 Standard Mount Universal Vent - White.
  • Lippert Components 389381 White Roof Vent.
  • Broan-NuTone 634M Roof Cap Black Up to 6" Round Duct.

Kumiko Helmschmied

Pundit

Is a ridge vent required by code?

If you plan to install insulation on your attic floor, then most building codes require that the attic be vented. If a roof has only soffit vents and no ridge vents, most codes require 1 square foot of net free ventilation area for every 150 square feet of attic floor area.

Jasleen Boegner

Pundit

What is the best ridge vent to use?

GAF Cobra3 Ridge Vent
In fact, the GAF Cobra3 is rated as the best ridge vent for the money. So, if you've been struggling to live in your house because of too much heat, the Cobra ridge vent is the most viable solution especially if you don't want to use air conditioners.

Laura Effers

Pundit

Are gable vents intake or exhaust?

Gable vents are installed in the gabled ends at opposite ends of the attic. When prevailing winds blow perpendicular to the vents, the gable vents act as both intake and exhaust. Less air exchange takes place and attic ventilation is not uniform, so it's less effective.

Dennise Dzhirin

Pundit

Are ridge vents better than attic fans?

When you are deciding between a ridge vent or an attic fan, consider the needs of the attic. If you have suitable intake venting, a ridge vent might be a better choice, while larger attics and those with poor ventilation might be better served by an attic fan.

Lisset Guaza

Teacher

How much does it cost to install a ridge vent?

Installing a roof vent costs between $300-$650 on average, including labor and materials. Exact rates depend on the type, size, and number of units you choose to install. Ridge vents cost $2 to $3 per linear foot. Roof vents come in a variety of styles and range from $10 to $500 each.

Joudia Zangrandi

Teacher

Do all houses have soffit vents?

In short the answer is no for most houses as shown in this picture; you see that open space – well that allows air to flow from one bay to another. Now if those rafter tails are blocked off or you used I-Joists, then the answer is that yes you need soffit venting in each bay.

Eckhard Yuhimuk

Teacher

Do ridge vents work when covered with snow?

That is what ridge vents were invented to do. But it must be noted that a ridge vent without good open continuous soffit vents will only collect rain or snow through the top. In snow country there is a second problem, a ridge vent quickly gets covered in snow and simply quits functioning -- no more ventilation at all.

Izana Weymer

Reviewer

How can I improve my attic ventilation?

These improve attic ventilation by creating a draft of air coming into the attic from outside at the lowest possible location on the roof.
  1. Rectangular Soffit Vents. Soffit vents. Source.
  2. Roof Vents. Round attic roof vent. Source.
  3. Ridge Vents. Caulking a ridge vent. Source.
  4. Gable Vents. Gable vent. Source.

Jeremi Corcho

Reviewer

Do gable vents interfere with ridge vents?

No way -- that's a prescription for disaster. Gable vents will alter the air flow around the ridge vent and, especially when wind is parallel to the ridge (at right angles to the gable), can actually reverse air flow through the ridge vent, pulling rain or snow into the attic.

Penni Kunel

Reviewer

Do roof vents help cool house?

When installed properly, roof vents can help keep your home cool, reduce humidity and prevent mold growth. When installed properly, roof vents can help to keep the home cool, reduce humidity and prevent mold growth.

Cathey Dunkhase

Reviewer

How long should a ridge vent be?

The net free vent area of the ridge openings are 672.75 sq inches / 40 = 16.8 sq inches per linear foot. Thus, as long as the given sq inches of ridge vent are less than 16.8 inches per linear foot, that 3/4 inch cut out to each side of the ridge is going to be adequate.

Kalidasa Zelentsov

Supporter

What is a ridge cap?

Because ridge-cap shingles cover the peak of the roof, where two angles meet, they play a critical role in keeping rain and melting snow from leaking into the house. And because ridge-cap shingles are bent over the roof, they can deteriorate quicker than the rest of the roof surface.