Broan Attic Ventilation Calculator

Determine your attic ventilation needs with our attic ventilation calculator.

Broan attic ventilation calculator.

Effective ventilation requires air to exit at or near the peak of the roof with replacement air drawn through soffit venting and louvers. Can a variable speed control switch be used with an attic ventilator. The home ventilating institute hvi recommends that powered attic ventilators provide at least 10 air changes per hour to equalize attic temperature. The home ventilating institute hvi recommends at least 10 air changes hourly to equalize temperature.

Use this tool to estimate the ventilation needs for your attic and get a list of broan attic ventilation product that will meet your needs. 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. 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. Attic ventilation estimating tool.

Allowable duct length calculator. The home ventilating institute hvi recommends at least 10 air changes hourly to equalize temperature. Attic ventilation calculator effective attic ventilation requires air to exit at or near the peak of the roof and replacement air to be drawn in under the eaves of the house via soffit venting. Answer yes model 72w or 72v variable speed controls may be used with the models 350bk 350br 353 35316 355bk 355br and 358.