• August

      18

      2017
    • 57
    • 0
    Attic Ventilation and Sizing

    Attic Ventilation and Sizing

      Fair warning: I am not an engineer. I’m not a scientist, either. I do make informal hypotheses and then use observational results to determine their merits, but using the scientific method does not make an expert. The truth is most contractors, builders, and even architects aren’t either of these things either. In fact, the

    • October

      10

      2014
    • 37
    • 0

    Air Leakage

    A blower door tests the tightness of the home’s envelope by pressurizing or depressurizing the structure and then measuring the amount of time for the entire air supply in the house be replaced with fresh air. For the NAHB’s Field Demonstration of Alternative Wall Insulation Products study, four builders insulated different houses with the various insulation

    • October

      2

      2014
    • 32
    • 0

    Attic Ventilation

      Attic Ventilation The International Residential Code specifies a 1 to 150 ratio of total net free ventilating area to area of space to be ventilated when it comes to ventilating attics. So, what exactly does this mean and why is it important to ventilate attics in the first place? We’ll start with the second

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