Tag Archives: moisture

Air Vapor Barriers: When in Doubt, Box it Out

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Deborah Slaton, David S. Patterson, AIA, and Jeffrey N. Sutterlin, PE

Air vapor barriers (AVBs) are critical in controlling air and moisture transport within building enclosure assemblies. Ignoring bulk water penetration, moisture-related issues experienced within the building enclosure are more commonly the result of moisture transport through air movement via discontinuities in the AVB than vapor diffusion through the wall assembly. Continue reading

Concrete Moisture Mitigation to Help Floors

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Emily R. Hopps

Concrete floor slabs contain excess moisture that can damage many types of floor finishes. To address this problem, manufacturers have developed products aimed at mitigating the moisture in concrete. However, not all these products are suited to their intended purpose. Continue reading

XPS, EPS, and Dock Flotation

After the feature, “Out of Sight, Not Out of Mind: Specifying Thermal Insulation Below-grade and Under-slab” ran in our December 2013 issue, we received a letter from retired architect, Joseph S. Bond. Mr. Bond wrote that the article in question “seems to reverse the findings” from both his personal and professional experience with expanded and extruded polystyrene (EPS and XPS):

I am a retired architect, and may not have the best current information on EPS and XPS, but when these two products were mistakenly used as ‘flotation’ for lake docks and later removed, the XPS bales were like new and had no water soakage beyond the first (1/8 in.). Continue reading

EIFS: Then and now

Our September 2013 article on entrapped moisture touched on issues related to early iterations of exterior insulation and finish systems (EIFS). It led to this letter to the editor from Scott Robinson, of the EIFS Industry Members Association (EIMA).

While going through the September 2013 issue of The Construction Specifier, I read, “Claddings and Entrapped Moisture: Lessons Learned from Early EIFS,” by John Koester. As manager of public affairs with EIMA—a national non-profit technical trade association comprising EIFS manufacturers, suppliers, distributors, and applicators—the article gave me pause. Continue reading