When installed properly, all Air Vent products mentioned here comply with the net free area requirements of nationally recognized model codes, including those written by the International Code Council. In addition, the vents have product evaluation approvals from Dade County, Florida, ICC and TDI.

Please call 1-800-AIR-VENT to obtain code body information for a particular Air Vent product.

Here's an overview of the specifications for Air Vent's complete line of ridge ventilation products.

View the wide range of colors in which our products are available in our pdf color chart (12 KB).

 

Product	Model	Description	Colors	Size	Net Free Area
ShingleVent II	SHFV, 12" wide	Shingle-over ridge vent	Black, Brown, Gray, Charcoal	4'	18 sq. in. per ft.
ShingleVent II-9	SHFV9CC, 9" wide	Shingle-over ridge vent	Charcoal	4'	16 sq. in. per ft.
ShingleVent II-7	SHFV7CC, 7" wide	Shingle-over ridge vent	Charcoal	4'	16 sq. in. per ft.
ShingleVent II-9A	CLASH9CC, 9" wide	Shingle-over ridge vent	Charcoal	4'	16 sq. in. per ft.
ShingleVent II-7A	CLASH7CC, 7" wide	Shingle-over ridge vent	Charcoal	4'	16 sq. in. per ft.
Multi-Pitch FilterVent	FV101	Aluminum ridge vent	Black, Brown, Bronze	10'	18 sq. in. per ft.
	FV110	Aluminum ridge vent	Black, Brown, Bronze	8'	18 sq. in. per ft.
Hip Ridge® Vent	HIPVBL	Shingle-over ridge vent for diagonal hips	Black	4'	12 sq. in. per ft.
VenturiVent Plus	VVP	Shingle-over ridge vent	Black	4'	18 sq. in. per ft.
VenturiVent Plus™ with Nails	VVPN	Shingle-over ridge vent with a bag of 30 3-inch ring shank nails taped to each 4-foot piece.	Black	4'	18 sq. in. per ft.
Continuous Unfiltered Ridge Vent	RV8000	Aluminum Ridge Vent	Brown, Black	8'
Connector Plug and Strap	FVCL105	CRV Connector Plug & Strap	Brown, Black
End Plug	FVL104	CRV End Plug	Black

Air Vent Color Chart

 Download a PDF version of our color chart

 

Venting packs contain four pieces plus two end plugs, three connector plugs and straps. Flash FilterVent includes four pieces of Supplemental Flashing.
Note: Venting packs can be shipped UPS, except Zinc.

 

THE SIMPLE MATHEMATICS OF A BALANCED RIDGE VENTILATION SYSTEM

 

• According to most building codes, you need 1 square foot of ventilation for every 150 square feet of attic floor space.
• For new home construction that includes a vapor retarder, the minimum is 1 square foot of ventilation for every 300 square feet of attic floor space.
• If your vents are split between ridge vents and intake vents, the minimum requirement is also 1 square foot of ventilation for every 300 square feet of attic floor space.

 

To determine how many feet of net free area you need, use this formula:

Square feet of attic floor space 300	=	Square feet of net free area needed
For example:
1500 square feet of attic floor space 300	=	5 square feet of free are a needed

 

To determine how many feet of ShingleVent® II, Multi-Pitch FilterVent® or VenturiVent Plus™ you need, use this formula:

1/2 net free area x 144 ÷ 18 = feet of ridge vent needed

For example: 2.5 (based on net free area of 5 square feet) x 144 ÷ 18 = 20 feet of ridge vent needed

To determine how many feet of Air Vent soffit vents you need, use this formula:

1/2 net free area x 144 ÷ 9 = feet of soffit vent needed

For example: 2.5 (based on net free area of 5 square feet) x 144 ÷ 9 = 40 feet of soffit vent needed

The following charts may be used to:

1. Determine how much net free area is needed to satisfy FHA requirements.

2. Balance your ridge vent system.

 

DETERMINING VENTILATION REQUIREMENTS

 

Attic Square Footage	Min. Net Free Area Required (if balanced between intake and exhaust)		Min Length of Ridge
1200 1500 1800 2100 2400 2600 3000 3300	4' 5' 6' 7' 8' 9' 10' 11'	576" 720" 864" 1008" 1152" 1296" 1440" 1584"	16' 20' 24' 28' 32' 36' 40' 44'

 

Note: ShingleVent II and Multi-Pitch FilterVent provide 18" of net free area per linear foot.

 

INSTALLING A BALANCED RIDGE VENT SYSTEM

 

• Measure the square footage of the attic (length x width).
• Measure the length of the ridge.
• Refer to the chart above for required net free area and minimum length of ridge for attic square footage.
• Note: In most cases, the length of the ridge balanced with the same net free area of intake vents will satisfy FHA minimum standards and most building codes.
• Use the chart below to calculate the amount of intake vents that should be installed to balance your ridge vent system.
• Always install ridge vents from end to end across the entire ridge for best appearance and to provide maximum ventilation area.
• Hip roofs, dormers and T- or L-shaped roofs may require a specially designed ventilation system. For information, request a copy of Air Vent's Principles of Attic Ventilation.See Contact Us.

 

Balancing Your Ridge Vent System

Length of Ridge	Linear Feet of Continuous Soffit Vent	Number of Undereave Vents
		16" x 8"	16" x 6"	16" x 4"
15'	30	5	6	10
20'	40	6	9	13
30'	60	10	13	19
40'	80	13	17	26
50'	100	16	21	32
60'	120	19	26	39
70'	140	23	30	45
80'	160	26	34	51
90'	180	29	39	58

Learn about warranty coverage, transferability, limitations, other conditions and customer responsibilities.

 

Read the full warranty and the list of eligible products.

 

For Warranty information and questions, please contact us at: warranty@gibraltar1.com 

 

 Download Full Air Vent Warranty Information

 

Limited Warranty
The Air Vent Product that you have purchased has a limited warranty from the date of purchase against defects in workmanship and materials. The length of the warranty varies by product. Please see attached chart for details. This warranty does not cover any labor costs, including those required for field repair or replacement or removal of any allegedly defective part.

 

Limitations
Air Vent shall not be liable for, and this warranty does not apply to, any failure, defect or damage resulting from or connected with misuse, abuse, neglect or improper handling or staging , or installation not in strict adherence to Air Vent’s written instructions; impact of foreign objects, fire, flood, earthquake, lightning, hurricane, hail, tornado or other violent storms or other act of God; or defects in failure of or damage caused by materials used as roofing base over which the product is installed or by movement, distortion, cracking or settling of walls or the foundation of the building.

Air Vent reserves the right to discontinue or modify any of its products including color, and shall not be liable as a result of such discontinuation or modification, nor shall Air Vent be liable in the event replacement material may vary in color in comparison to the original product as a result of normal weathering. If Air Vent replaces any product under this warranty, it may substitute products designated by Air Vent to be of comparable quality or price range in the event the product initially installed has been discontinued or modified.

 

Replacement Plus™ Protection
Products are covered by Replacement Plus™ protection (see attached for applicable products) for a period of time (varies by product) provided that the product has been installed in strict accordance with Air Vent’s written installation instructions. Under this warranty feature, Air Vent, at no charge, will replace any product found to be defective during the Replacement Plus™ period as long as proof of purchase is submitted to Air Vent (Replacement Plus™ period begins when the product installation is completed). Air Vent’s maximum liability under Replacement Plus will be equal to the reasonable cost to replace the defective product, including labor.

In instances in which Air Vent, according to the terms of this warranty, has agreed to pay the cost of labor required to replace a defective intake vent, Air Vent will provide reimbursement only upon receipt of a copy of the contractor’s invoice or other written evidence of the completion of the work which Air Vent, at its sole discretion, deems acceptable.

 

Transferability
Provided that the products covered by this warranty have been installed in strict accordance with the Air Vent Inc. written installation instructions and in accordance with all local codes and standards, including those pertaining to fire-rated construction, Air Vent warrants to the original purchaser or first subsequent owner of the property that the product is free from manufacturing defects for the described length below from the date of purchase. If there is a change in ownership, the warranty may be transferred by the original purchaser of the product to the new owner (first subsequent owner) under the terms and conditions of this warranty.

 

Motor Replacements
The electrical motor is to be used solely as a direct replacement for a motor of the same model in an Air Vent, Inc, power attic ventilator. Using the motor in any other product could result in electrical shock and/or fire, which may cause property damage, serious injury or even death. Any motor replacement should be installed by a qualified licensed electrician in accordance with local, state and national electrical codes and standards. Make sure that power to the unit has been completely turned OFF at the breaker before approaching or inspecting the power attic ventilator or installing the replacement motor.

 

Other Conditions
This warranty is expressly in lieu of all other oral or written warranties, liabilities or obligations of Air Vent. Pertinent state law shall control for what period of time subsequent to sale a consumer/homeowner may seek a remedy pursuant to the implied warranty of merchantability or fitness for a particular purpose. In no event shall Air Vent be liable for consequential or incidental damages of any kind, including any damage to the building, its contents or any persons therein, resulting from the breach of any warranty set forth herein, unless exclusion of these types of damages are specifically prohibited by state law. No field representative of Air Vent or any distributor or dealer is authorized to make any change or modifications to this warranty. This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

 

The following warranty is effective 7/26/2018.

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Product	Warranty	Replacement Plus Protection
ShingleVent ®II ridge vent (12", 9", 7", Class A 9" and 7")	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Peak Performer™ I & II Rolled ridge vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Multi-Pitch FilterVent® ridge vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
The Edge™ Vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Hip Ridge® Vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
VenturiVent™ Plus ridge vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
VenturiVent™ Rolled ridge vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
ATTIC-AIRE™ ALL SEASONS™ Filtered Ridge Vent and Roll Vent	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Power Cool Plus™ Power Attic Ventilator- model PC15	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Power Cool Plus™ Power Attic Ventilator- model PC12	10 Year Limited Warranty	5 year Replacement Plus™ protection
Power Cool™ Power Attic Ventilator- model BR28	10 Year Limited Warranty	5 year Replacement Plus™ protection
Power Cool™ Power Attic Ventilator- model BR26	5 Year Limited	2 year Replacement Plus™ protection
High Efficiency Roof-Mount Power Vent- model HE15	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Solar Power Fan- (models NPSP8WW, SC8BL, NPSG8, 9010TR)	5 Year Limited Warranty	2 year Replacement Plus™ protection
Gable-Mount Power Fans (APG, APGH)- with Humidistat	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Gable-Mount Power Fans (WCGB)- with Thermostat	10 Year Limited Warranty	5 year Replacement Plus™ protection
Gable-Mount Power Fans (model WCGA)	5 Year Limited Warranty	2 year Replacement Plus™ protection
Gable-Mount Power Fan Solar (NPSG8)	5 Year Limited Warranty	2 year Replacement Plus™ protection
Gable-Mount 20 Watt Solar Fan (1020APV)	5 Year Limited Warranty on Fan Motors	20 Year Limited on Solar Panel, Fan Housings
Whole-House Fans	10 Year Limited Warranty	5 year Replacement Plus™ protection
Roof Mount Power Vent (ASRHP, SV3000)	Limited Lifetime Warranty	5 year Replacement Plus™ protection
Roof Mount Power Vent (RV26, RV28)	10 Year Limited Warranty	5 year Replacement Plus™ protection
Roof Mount Power Vent (NPSP8WW, SC8BL)	5 Year Limited Warranty	2 year Replacement Plus™ protection
Automatic Foundation Vent	5 Year Limited Warranty
Heavy Duty Automatic Foundation Vent	5 Year Limited Warranty
Powered Foundation Vent	5 Year Limited Warranty
Ridge Vent 20’	Limited Lifetime Warranty
Airhawk® Wind Turbines (TIB, TOB series)	Limited Lifetime Warranty
Attic Aire™ Wind Turbines (WT series)	5 Year Limited Warranty
Airhawk® Static Vents (RVG55, B144, SLP150)	5 Year Limited Warranty
Low Voltage Foundation Vent (Series 5 & 6, Radon)	5 Year Limited Warranty
Solar Power Fan (AV9912TR, AV9920TR, AV9930TR)	5 Year Limited Warranty on Fan Motors	20 Year Limited on Solar Panel, Fan Housings
Skylight Tubes (1914ST, 2114ST)	10 Year Limited Warranty
US Sunlight Solar Controller (SC20)	1 Year Limited Warranty on Unit, Remote

Success Story - ShingleVent II

ShingleVent II ridge vent combines beauty and performance with its low-profile design and proven airflow & weather protection results.

ACI, Hollis, NH
Address: 265 Proctor Hill Road
Hollis, NH 03049

Editor’s Note: Pictured here 7-inch wide ShingleVent II is installed on a metal roof using Country Manor Shake aluminum shingles by Classic Metal Roofing System. ShingleVent II is available in three widths: 7-inch, 9-inch and 12-inch.

 

Important Installation Steps from ACI:

1. The opening at the peak is the missing plywood sections removed of the asphalt shingles at the ridge only. A single layer of asphalt shingles were left in place over the entire roof and covered with a special underlayment.
2. Flatten coverable shakes to less than 1/16″ roughness or cover flattened rough shake surface with narrow 1.5″-wide flashing.
3. Critical to installation is flattened aluminum shake surface roughness preparation and material long-term corrosion/erosion compatibility in conjunction with ventilation. If less than 1/16″ surface roughness is not obtainable, inclusion of approximately 1.5″-wide layer of flat aluminum flashing in between mating surfaces is preferred.
4. Stainless steel pan head screws were used throughout installation.

 

 

Click an image to enlarge:

 

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SUCCESS STORY - SHINGLEVENT II

Bone Dry Roofing, Inc., Indianapolis, IN
Address: 4825 West 79th Street
Indianapolis, IN 46268
Phone: 317-873-6005
Website: www.bonedryroofing.com

 

Editor’s Note: For this project the homeowner requested a new roof. The shingles were showing significant signs of deterioration. Upon inspection Bone Dry Roofing learned the current pitched roof was built over the top of an existing flat roof. There was zero intake ventilation for either of the two separate existing attics. The existing exhaust ventilation was 4 roof louvers. Bone Dry Roofing proposed ShingleVent II ridge vent for one attic that had a generous ridge length (25 linear feet) and a 30-watt solar powered fan for the 2nd attic (it only had 4 linear feet of ridge length available so a ridge vent would not work). The solar powered fan has a “Solar Controller” that allows fan operation without access to the sun if desired. Edge Vent was used as the intake ventilation.

 

“When we inspected this roof it was clear the shingles were blistering badly and cracking. Lack of proper airflow contributed to this. The customer is very happy with the finished product and is very appreciative that we were able to bring their attic ventilation up to code.” – Judd Haag, General Manager, Bone Dry Roofing

 

Click an image to enlarge:

 

 

SUCCESS STORY - SHINGLEVENT II

G & G Restoration, LLC, Greenwood, MO
Address: 24903 Timberlake Drive
Greenwood, MO 64034
Phone: 816-810-7218
Website: www.midwestrestore.com 

 

“We had to move The Edge Vent up the roof to access the attic. We separated the attic spaces to reduce the possibility of short-circuiting the system due to vertical height differences. The homeowner has noticed a difference. Even with a small amount of snow on the roof it now melts evenly.”  – Geremiah Gilliand, President, G & G Restoration

 

Editor’s Note: This project in Spring Hill, KS features an 1850s’ built house. G & G Restoration used ShingleVent II ridge vent (exhaust airflow @ horizontal peaks), Hip Ridge Vent (exhaust airflow diagonally) and The Edge Vent (intake airflow).

 

Click an image to enlarge:

 

Image 1) Edge Vent “Up the Roof”
Image 2) House in Progress
Image 3) House Built in 1850s
Image 4) Hip Ridge Vent

 

 

SUCCESS STORY - SHINGLEVENT II

Paul Davis Restoration, Richmond, VA
Address: 2119 Dabney Road
Richmond, VA 23230
Phone: 804-330-9500
Website: www.pauldavis.com 

 

“We trimmed out the soffit vent with PVC board to reduce the need for maintenance. The overall finished product looks fantastic. The homeowner was really pleased. The temperature and the humidity inside the attic has drastically reduced. A win all around! ”  – Stuart Thompson, Project Manager, Paul Davis Restoration

 

Editor’s Note: Before Paul Davis Restoration got involved in this project the house had 3 roof louvers for attic exhaust airflow and ZERO intake airflow (vented soffit panels were installed but the holes inside the plywood were never cut). Mold growth was observed on the underside of the roof deck and on the rafters. For the fix, and after removing the mold, Paul Davis Restoration installed continuous vented soffit (intake) and a combination of horizontal ShingleVent II ridge vent with diagonal Hip Ridge Vent (exhaust).

 

Click an image to enlarge:

 

Image 1) Continuous Soffit Vent Installed
Image 2) ShingleVent II and Hip Ridge Vent
Image 3) ShingleVent II and Hip Ridge Vent

 

 

SUCCESS STORY - SHINGLEVENT II

JSD Sanchez Roofing, Oklahoma City, OK
Address: 1340 SW Straka Terrace
Oklahoma City, OK 73159
Phone: 405-210-8632

 

“By our estimation, the shingles were less than 10 years old but were already sunbaked due to inadequate attic ventilation. There were only two small intake vents on the underside of the front gable box over the garage. For exhaust, we found the common mistake of two different types being mixed together (roof louvers combined with gable louvers). The homeowner was not interested in having holes cut in the freshly painted soffit for purposes of providing intake ventilation. The solution was to remove the existing exhaust vents, install ShingleVent II ridge vent along with roof-top intake The Edge Vent.”  – Don Chernicky, Makeover Masters

 

Editor’s Note: Makeover Masters originally contacted Air Vent seeking guidance for this project. JSD Sanchez Roofing did the installation. When The Edge Vent is used in a valley the slot stops 12 inches from the valley.

 

Click an image to enlarge:

 

Image 1) Edge Vent slot cut near valley
Image 2) Edge Vent installed with gutters
Image 3) ShingleVent II and Edge Vent Installed

 

 

SUCCESS STORY - SHINGLEVENT II

Triple Peaks Roofing & Construction, Inc., Westlake, OH
Address: 805 Sharon Drive
Westlake, OH 44145
Phone: 440-925-0386
Website: www.triplepeaksroofing.com 

 

“This house has a lot of hips and valleys with limited horizontal ridges. The limited ridges was a problem for attic ventilation. Using power fans was an option but we presented Hip Ridge Vent to take advantage of the many hips. The homeowners love their decision to go with Hip Ridge Vent instead of the power fans. This house now stands out from the others in the neighborhood. ”  – Jeff Heitzenrater, Vice President of Operations, Triple Peaks Roofing & Construction

 

Editor’s Note: ShingleVent II ridge vent is designed for roof peaks (horizontal). Hip Ridge Vent is designed for the hips of a roof (diagonal).

 

Click an image to enlarge:

 

Image 1) Front View
Image 2) Hip Ridge Vent & ShingleVent II Side View
Image 3) Horizontal and Diagonal Ridge Vent Blended

 

 

SUCCESS STORY - ShingleVent II

Lunsford Construction, Inc.
16607 Paxton Avenue
Tinley Park, IL 60477
Main: 708-257-5062
Tim Sullivan: 708-347-4732
Website: www.lunsfordconstructioninc.com
Email: lunsfordconstructioninc@yahoo.com

“This project features ShingleVent II continuous ridge vent with The Edge Vent (roof-top at the eave) intake vents. Can you see them? Low profile, efficient ventilation will help to keep the attic temperature in check all year.” – Mike Lunsford, Owner, Lunsford Construction, Inc.

 

Editor’s Note: : The gable louver visible in the picture has been blocked from inside the attic to avoid possible short-circuiting of the exhaust vents (which can happen when 2 different types of attic exhaust vents are used on the same roof above a common attic).

 

Click the image to enlarge:

 

 

SUCCESS STORY - ShingleVent II

Rampart Roofing & Construction
2701 Wind River Lane
Denton, TX 76210
Phone: 940-230-8919
Facebook: www.facebook.com/trustrampartroofing
Email: TrustRampartRoofing@gmail.com

“For this roof we corrected the existing attic exhaust ventilation and upgraded to ShingleVent II ridge vent. There was a combination of box vents, wind turbines and ridge vent that was not run consistently along the peak of the roof. Now there is exclusively ridge vent and soffit vents for intake airflow.” – Cameron Hurley, Owner, Rampart Roofing & Construction

 

Editor’s Note:  Mixing/combining types of attic exhaust vents (ridge vents, box vents, gable louvers, wind turbines, gable fans and roof-mount power fans) short-circuits the system. This can cause inefficient airflow in the attic and possible weather infiltration (one of the exhaust vents becomes the intake vent and ingests air/weather).

 

Click the image to enlarge:

Low-profile ShingleVent II ridge vent along the peak of the roof

 

 

SUCCESS STORY - ShingleVent II

Atwell Exterior Services LLC
2430-B Charles Blvd.
Greenville, NC  27858
Phone: 252-304-6229
Website: www.atwellextservices.com
Email: trevor@atwellextservices.com

“We replaced all of the ridge vent and cap shingles on this home after replacing the OSB sheathing on both sides of the ridges. We reduced the opening size to Air Vent’s recommended ¾ inches on both sides of the ridge beam, instead of the nearly 4-inch gaps we found under the leaking ridge vents” – Trevor Atwell, Owner, Atwell Exterior Services LLC

 

Editor’s Note:  A wider slot than is required in the Installation Instructions does not increase the vent’s airflow performance.

 

 

 

 

SUCCESS STORY - ShingleVent II

3rd Generation Home Improvements
35835 Vine Street
Eastlake, OH 44095
Phone: 440-850-5592
Website: www.3rdgenerationhomeimprovements.com
Email: 3ghomeimprovements@gmail.com

“This severely damaged roof required a complete tear-off and installation of nearly all new roofing materials and attic ventilation. Along with replacing the damaged wood, adding new shingles and repairing the damaged chimney, we updated the attic ventilation system to include ShingleVent II Ridge Vents.” – Michael Scaperato, Owner, 3rd Generation Home Improvements

 

Editor’s Note:  As you can see from the photos, this created clean, seamless, end-to-end ventilation across the entire roofline of the home.

 

 

 

Photo 1: Rotten wood uncovered
Photo 2: All rotted wood carefully and strategically removed
Photo 3: ShingleVent II installed
Photo 4: ShingleVent II ridge vent by Air Vent
Photo 5: End-to-end ridge vent provides continuous exhaust airflow
Photos 6 & 7: Finished product

ShingleVent II Smoke House Test Using a transparent smoke house setup, this segment demonstrates the effective ridge vent ventilation of heat and moisture using the Bernoulli Effect with ShingleVent II.	Ridge Vent Net Free Area vs. Actual Airflow This segment highlights why a ridge vent’s Net Free Area rating is not the best indicator of the ridge vent’s actual performance.	Ridge Vent Heat Buildup Test This segment examines how well or how poorly various styles of ridge vents minimize heat buildup inside the attic in testing conducted at the University of Illinois.
Download Video	Download Video	Download Video
Ridge Vent Smoke Bomb Demonstration This segment highlights how well a ridge vent designed with an external baffle uses the wind to its advantage to pull more air out of the attic in testing conducted at the University of Florida. See the Bernoulli Effect for yourself!	Ridge Vent Water Infiltration Test Video This segment examines the weather protection capabilities of various styles of ridge vents in tests conducted at Architectural Testing Labs. You won’t believe the amount of water some ridge vents allow into the attic!	Ridge Vent Dust Infiltration Test Video This segment simulates 10 years of wind-blown dust exposure for various styles of ridge vents and measures the impact the dust has on the ridge vent’s airflow performance. Once and for all: Does Air Vent’s internal weather filter clog? No, and here’s the proof.
Download Video	Download Video	Download Video
Ridge Vent Class A Fire Resistance Testing This segment highlights footage of Class A rated 7-inch wide and 9-inch wide ShingleVent II ridge vent passing UL’s most stringent fire resistance testing: “Spread of Flame” and “Burning Brand.” Class A is a requirement in areas where wild fires are common.	Ridge Vent Airflow Readings This segment examines the design and density of various styles of ridge vents and measures their actual airflow performance in tests conducted at Architectural Testing Labs.
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