Ohagin Roof Vents Calculator

Ventilation calculator let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. Use avp s roof vent calculator to determine the number and size of exhaust vents you will need. Determine the total square footage of the attic floor space to be ventilated.

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877 324 0444 instructions complete step by step installation instructions are.

Ohagin roof vents calculator.

For the complete pdf version of the installation instructions in english and in spanish please follow one of the links below. Determine the total square footage of the attic floor space to be ventilated. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. O hagin vent calculator quick vent calculation guide for o hagin s standard weathermaster and fire ice attic vents there are two important pieces of information required in order to calculate the adequate number of vents required for your project.

Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Profile specific attic vents for tile roofing applications. For balanced ventilation an equal amount of intake vent area net free area should also be installed. For the complete pdf version of the installation instructions in english and in spanish please follow one of the links below.

Class a fire rated miami dade county product control approved for complete testing information call. Today o hagin has local and national testing approvals. From its founding roots as a roofing company over 40 years ago o hagin has grown into a nationally recognized designer and producer of top quality state of the art attic ventilation solutions. Quick vent calculation guide for o hagin s standard weathermaster and fire ice attic vents there are two important pieces of information required in order to calculate the adequate number of vents required for your project.

O hagin is a recognized leader in attic ventilation testing and design o hagin products hold local and national approvals including. Is recognized for its industry leading efforts in research development and testing.