I recently posted on this blog about some new research released by Georgia-Pacific on their DensElement product. Related to that topic, there has also been recent research comparing the performance of DensElement to a competing product: Securock ExoAir 430 by Tremco/USG.
Read moreTag: materials
Georgia-Pacific Releases New DensElement Testing Results
Georgia-Pacific just released a new white paper detailing the results of recent testing on their DensElement sheathing. DensElement is a hybrid sheathing panel that is intended to function as both air and water barrier as well as sheathing when installed per the manufacturer’s guidelines. The testing was performed by Intertek.
Read moreLimestone by the sea
Take a look at the difference in the limestone sills on the left and right side of the image below.

The one on the left is new and the one on the right is about 70 years old, having spent those 7 decades directly exposed to the ocean. The erosion of the limestone on the right is from this exposed to salt-laden mist from the sea.
Read moreDoes an AVB control water?
The language of building science can be very confusing. Terms often mean something different than what the plain English interpretation would lead you to believe. In this LinkedIn post, we tackle one such term: AVB.
Read moreDon’t Buy Replacement Windows
Protip: Don’t buy “replacement” windows.
If you need new windows, ask your contractor for “new construction” windows.
Yes, it will cost more. That’s because “replacement” windows don’t actually replace your existing window. They get installed inside of it. The old, often failed, window frame is still there (still leaking if it did before). “New construction” windows are actually… wait for it… new windows.
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