Are you a subscriber but don’t have an online account?

Register for full online access.

 
 
 
 

More stories about Ventilation

  • Q&A: Right Size for an Insulating Air Space

    Q: How big does an air space need to be before it stops working as insulation and starts working as a convective loop?

  • Q&A: Makeup Air for an Exhaust-Only Ventilation System

    Q: Q. I’m building a tight house with above-average attention to air sealing, and I plan to ventilate with a Panasonic exhaust fan running continuously. Will the cracks around windows and doors admit adequate makeup air, or do I need to provide wall vents

  • Kitchen & Bath: Venting Professional-Style Kitchen Ranges

    Venting professional-style kitchen ranges

  • Q&A: Asphalt Shingles on Unvented Roofs

    Q: Our insulation subcontractor advises us to install dense-pack cellulose in the rafter bays over a cathedral ceiling, without ventilation baffles, and the local building inspector approves. If we don’t ventilate under the roof sheathing, what happens to

  • Q&A: Powered Attic Ventilation

    Q: I am trying to plan the best way to ventilate a hipped roof above an attic. Since the ridge is very short, ridge venting is not an option. I was planning to install powered exhaust ventilation. How should I size the fan?

  • Q&A: Attic Ventilation Details

    Q: I am improving the attic ventilation in a 30-year-old two-story house in Virginia. My plan is to install soffit vents and insulation baffles. The attic has gable vents with thermostatically controlled fans. Do I have to install a ridge vent, or are the

  • Products

    Ready-made business forms; ventilating fan for toilet bowl; generator wheel kit; rack for production door painting; hot wheelbarrow add-ons; more

  • Q&A: Makeup Air for Fireplaces and Exhaust Fans

    Q: In a house I am building, I need to provide adequate makeup air for a fireplace and a 600-cfm cooktop exhaust fan. How do I size a passive duct to introduce exterior makeup air into the house?

  • Choosing a Whole-House Ventilation System

    Homeowners and code officials are beginning to insist on better mechanical ventilation systems. A ventilation expert helps you choose the best system for your climate.

  • Kitchen & Bath: Effective Bathroom Ventilation

    Sizing a bathroom vent fan