O hagin is a recognized leader in attic ventilation testing and design o hagin products hold local and national approvals including.
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.
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.
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.
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.
Today o hagin has local and national testing approvals.
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.
Is recognized for its industry leading efforts in research development and testing.
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.
Profile specific attic vents for tile roofing applications.
877 324 0444 instructions complete step by step installation instructions are.
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.
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.
