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Best Roof Vent Cap

Roof Vent Cap 4

Roof Vent Cap Reviews

Owning a turbine vent allows the home to have more moisture, which in turn will allow the shingles on your roof to last much longer. Ventilation within your attic is very important. Having the proper ventilation within your attic freezing will be prevented in the winter time and the summer months will keep the attic much cooler. The following turbine vents are the best on the market and will allow you to control the temperature within your home more efficiently.

Most Popular Roof Vent Cap

Builder’s Best

5/5 Product Rating

The Speeedi-Products EX-RCGC 06 6-Inch Diameter Galvanized Roof Cap with Collar, Black is the perfect roof vent cap that you can use for individual or commercial use. The roof vent cap is constructed within the United States allowing you to support American made products. The product has a screen that can be removed with a collar that is six inches. The damper provides a backdraft. This roof vent cap is 16 x 14.4 x 9 inches in size and is only 4.8 pounds in weight. You can use the Speeedi-Products EX-RCGC 06 6-Inch Diameter Galvanized Roof Cap with Collar for exhaust venting structures. The roof vent cap’s joints will seal with the appropriate tapes and duct mastic sealants. Before you purchase this roof vent cap make sure to consult the installer to ensure it is installed to meet local building codes. It comes with a 1 year warranty.

  • Made in the United States
  • Removable screen
  • Damper that creates a backdraft
  • Roof vent cap is 16 x 14.4 x 9 inches
  • Increase life of roof and reduce heating and cooling costs

Best Overall Roof Vent Cap

Air King

4.7/5 Product Rating

The Air King PRC6R 6-Inch Round Professional Hood Roof Cap is the perfect roof vent cap for your home or commercial area. You can purchase this product in several different sizes including six, eight, and ten inches. This roof vent cap has a wall cap that is designed to professionally match the needs of your system. The vent cap is made of galvanized steel which is very strong and durable. The Air King PRC6R 6-Inch Round Professional Hood Roof Cap has a backdraft damper that is built into the device. This roof vent cap is 18.3 x 17.5 x 9.8 inches in size and weighs 4.7 pounds. By purchasing a roof vent cap you will be able to correctly ventilate the air out of your home. Not only is this roof vent cap perfect for residents but it can be used to circulate air within hospitals, factories, and warehouses.It comes with a 1 year warranty.

  • Several different sizes including 6, 8, and 10 inches
  • Comes with a 1 year warranty
  • Made of galvanized steel
  • 18.3 x 17.5 x 9.8 inches in size
  • Can be used to circulate air within homes, hospitals, factories, and warehouses

Best Budget Roof Vent Cap


4.3/5 Product Rating

The Broan-Nutone 636 Roof Cap Steel/Black Finish, Fits 3 or 4-In. Round Duct is an affordable roof vent cap that can be used commercially or for individual use. The product is 11.3 x 9.5 x 5.3 inches in size and is only two pounds in weight. This roof vent cap model 636 is suitable for round ducts that are three to four inches in size. The roof vent cap has a backdraft damper that is built into the product. The Broan-Nutone 636 Roof Cap Steel/Black Finish. The round duct is made out of steel with a bird screen. It has an enamel finish and comes in black. This roof vent cap has a square shape and is extremely sturdy. Due to the construction the product is made to last and can be installed easily. This roof vent cap is the best on the market for dryer vents or bathroom vents and will exhaust to the roof. The damper works efficiently and will open and close without binding.

  • 1.3 x 9.5 x 5.3 inches in size
  • Model is 636 and suitable for round ducts
  • Has a backdraft damper
  • Made out of steel
  • Easy to install

Roof Vent Cap Buying Guide

Roof Vent Cap 5

With so much emphasis being placed on going green and reducing global warming, homeowners are becoming increasingly aware of the importance of improving the energy efficiency of their home. One way that energy efficiency can be accomplished is through the use of a roof vent system to help manage the temperature in the attic. Roof vents, and the ductwork that is commonly associated with them, are vital elements in the process of creating and sustaining home cooling and heating efficiency.

The Importance of Controlling the Attic Temperature

It is not very difficult to apprehend the concept of a layer immensely cold air in the attic sitting directly above a heated living space in the winter, or a layer of extremely hot air sitting over a cooled living space in the summer forcing the relative heating or cooling systems to work extra hard to maintain the desired room temperature.

The solution to this enigma is actually very simple. There must be a means through which the air in the attic can be exchanged with the outside air. In addition to this function, roof vents also function in several additional capacities, including acting as exhaust fans and to assist in certain plumbing functions.

The information set forth in this guide will provide the purposes and benefits of using vents as well as present some key tips to consider when determining the right roof vent system for a particular home. This includes how to determine the right size for any home, and the construction of ducting and venting materials.

Benefits of Properly Installed Vents

Although a great deal of emphasis here is placed on the vents themselves, it is vital to understand that the duct system must also be considered when determining what system will be best for a particular home.

To the average person, it would seem that choosing and properly installing the right roof vent system would be somewhat elementary; however, it is amazing the number of venting systems that are completely ineffective in accomplishing that task for which they were installed. Choosing the wrong vent or improper installation can end up having a reversed impact. Instead of saving money on energy cost, it can actually increase the cost.

Another common issue associated with poor ventilation is an increase in condensation, which will serve to accelerate the deterioration of wood and insulation with mold, mildew and rot. In extremely cold climates, it is common for ice dams to develop, but an effective venting system will help alleviate the problem.

Accurately Sizing Roof Vents

When it comes to determining the right size vents, it is a common rule of thumb to allow one square foot of exhaust ventilation and intake for every 300 square feet of attic floor space. The square footage can be determined by multiplying the length and width of the attic floor. If the attic has sections, you will need to perform separate measurements and then add them together to get the square footage of the entire attic.

In the rare case in which the insulation does not have any plastic or paper vapor barrier, or it is impossible for the ventilation to be equally spaced around the attic area, you will need to reduce the divisor to 150. Now, you will have to divide that number by 144 in order to get the number of square inches of ventilation that will be required.

It is important to understand that there should be an equal amount of intake and exhaust vents.

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Types of Roof Vents

For the sake of lucidity, there are four basic types of roof ventilation systems. Two systems function to provide an exhaust for the air in the attic, while the other two serve as intake systems. There are a number of different materials that are used in the production of these venting systems, depending on the conditions and climate.

Ridge Vents

For the fashioned-minded homeowner, ridge vents will probably be the best choice. The majority of homeowners sees these vents as the most aesthetically pleasing out of the ones that are currently available. Ridge vents have screens and water shields to keep out the elements and the critters. There are no moving parts, so there will be no concern about wear or anything getting crushed or damaged in the vents.

Turbine Vents

Turbine vents are extremely popular because of their passive ventilation capabilities, meaning that they do not use electricity. The turbines are powered by the outdoor air. Even when there is no wind force outside, the air in the attic will be able to escape through the vents in the turbines.

Soffit Vents

Soffit vents are vents that provide the intake capacity for the ventilation system and work in conjunction with either turbine or ridge vents. Soffit vents can be either rectangular, rounded or continuous in their design. These vents provide intake air that creates the circulation that replaces the existing air in the attic with outside air.

Gable Vents

Gable vents are available in many different sizes, and they are designed to function as intake vents that are installed underneath the edge of the gable ends. This allows cross ventilation from each end of the home, contributing to the entire ventilation process.


As a general rule, galvanized steel, carbonized steel or stainless steel is used to manufacture the majority of vents, meaning that fragility, rust and corrosion are not issues of concern. It is not unheard of to get more than a quarter of a century out of a set of vents.

Finding the Best Vents

Although there are some outstanding brick and mortar retailers that offer a variety of roof vent brands, online purchases of roof vents has become the method of choice. The search process can be completed in literally minutes, and it exposes the homeowner to non-local companies that have larger and more affordable vents.

It is important to conduct a little background research on any online retailer before buying from them. Although most of the retailers online are legitimate, there are some that are not reputable Examine customer service policies and the length of warranties. This will go a long way in revealing the type of business philosophy the company has. The warranty will also give you an idea of how long you can expect your vents to last, as most companies set their warranties just short of the expected life span of their product.

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