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Building Science

Webinar: Walls That Work–An Intro to the Four Control Layers

A discussion of wall assemblies and the specific details that are needed for durable, comfortable, and energy-efficient homes

Brian Pontolilo

There’s more than one way to build a durable and efficient wall. Like most things, the devil is in the details—and in this case, the details refers to the four control layers. For a comfortable home and a wall that won’t fail, you must control water, air, vapor, and temperature. In this webinar we’ll study the four control layers, take a look at building codes and various climates, and open up a handful of walls that work.

For more on this topic, see this collection of articles: All About High-Performance Wall Assemblies.

Brian Pontolilo is the editor of Green Building Advisor. You can reach Brian at [email protected]. This webinar was originally recorded Wednesday, April 1, 2020 at 7 pm est. as part of Fine Homebuilding’s new webinar series.


One Comment

  1. navroz | | #1

    I watched a recorded version of the Webinar.
    I learnt a lot and understood the contents.
    But I am unclear why an assembly with No cavity insulation at all ( R-value gained with exterior Rigid only) was not mentioned. Is such practice not advised ?
    ( Prefer the answer in reference to Climate zone 5)


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