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Roofing/gable vent removal

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Question
My house has soffit vents, 2 gable vents, and 2 turbine vents. I would like to cover the gable vents completely because I am installing new siding on the end gables of the house. Will this reduce any ventilation of the attic. Summers are 100+ in this part of Texas.

Answer
Ronnie,

Covering the gable vents will absolutely reduce your attic venting, and the two turbine vents will most likely not provide the code required venting ratio.  If you want to cover the gable vents you will need to provide evenly distributed ventilation openings at the soffits of your roof that will have clear air flow into your attic space of equal or greater ventilation area provided by the existing gable vents.  Code likely requires that 50% of the ventilation area be three feet lower than the other 50% if you are going to modify what exists currently and it is generally a good idea as the passive venting properties are improved through the draw of hot air rising.

Bruce Ryan II, RRO
Professional Roof Consultants, Inc.

Roofing

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Bruce A. Ryan II, RRO

Expertise

I offer solid knowlege of all types of Commercial and Residential Roofing, Waterproofing, and, Building Envelope systems. Experience ranges across low slope and steep slope roof systems. I am also well versed in matters regarding condensation and ventilation. I enjoy donating some of my time and knowledge to the betterment of others.

Experience

Bruce Ryan has 20 years of roofing, waterproofing, and building envelope consulting experience with PRC, with 5 years of commercial roofing experience prior to joining the firm. He became Vice President of the company in 1998. Bruce Ryan plays a key role in the development of practical, long-term roofing and waterproofing solutions, along with implementation of on-site forensic studies. Bruce also has a high level of experience with regard to the impacts of roofing materials and construction for demanding clients with heavily occupied structures.

Organizations
Oregon Construction Contractors Board Construction Specifiers Institute National Roofing Contractors Association The Institute of Roofing, Waterproofing, & Building Envelope Professionals Oregon Board of Investigators Installation Masters

Education/Credentials
University of Maryland BS Business & Administration Registered Roof Observer - RCI Private Investigator Certified EIFS inspector - Northwest Wall and Ceiling Bureau Certified InstallationMaster™ - The Installation Masters™ Training and Certification Program (developed by American Architectural Manufacturers Association)

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