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DELTA® INSIGHTS

Your source for the latest on high performance air and moisture barriers. From changing building codes to new building techniques, our experts are here to provide you with the information you need to build to a higher standard.

A Builder’s First Time Using Peel and Stick House Wrap

When maintaining long-term building integrity, airtightness is an important feature to keep in mind. Airtightness simply means that there are no unintended gaps in the building envelope—gaps that would otherwise cause air leakage in or out of the building. It is an essential performance parameter in helping ensure energy efficiency. How airtightness is achieved comes […]

Sheathing Membranes: Air Barrier Building Code Requirements

In a previous article, we discussed the North American building code requirements for sheathing membranes and their function as water-resistive barriers (WRB). This third and last article of the blog series will uncover the additional, critical role of sheathing membranes as air barriers. Sheathing membranes that act as air barriers are typically of the polymeric […]

How Can Builders Avoid the Detrimental Effects of Wind-Driven Rain?

When it comes to maintaining a building’s integrity and longevity, protecting the building from factors that contribute to moisture-related issues is key. How do moisture-related issues materialize to begin with? According to research, wind-driven rain on a building’s façade is considered one of the largest sources of moisture2 and, most commonly, moisture is the number […]

What’s the deal with pressure equalization versus open-cladding?

You would think that after a half century the physics of wall design would be obvious, straightforward and non-controversial. Apparently not. Folks latch onto concepts that are partially true…true in a limited sense…without appreciation of the range of applicability. As Dirty Harry Callahan would say…a wall has got to know its limitations. There has been […]

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