Tag Archives: R-value

Specifying Flagpoles: Exploring standards and common errors

February 10, 2017

Flagpole specifications commonly found in institutional, commercial, and other requests for proposals (RFPs) have numerous errors, which, albeit not catastrophic, affect the aesthetic and functional life of the flagpole, as well as the project cost.

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Estimating R-values for enclosed reflective air spaces

January 5, 2017

Reflective insulation systems (RIS) consisting of a reflective insulation material and an adjacent enclosed reflective air space have been used as building thermal insulation in the United States for nearly a century.

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PIMA releases roof insulation research on cold climates

July 27, 2015

The Polyisocyanurate Insulation Manufacturers Association (PIMA) developed a research report in response to recent articles questioning the thermal performance of polyiso roof insulation in colder climates.

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Updating values for polyiso

March 10, 2014

The January issue of The Construction Specifier included the article, “Impact of Advancements in Model Energy Codes,” by Jared O. Blum. We received the following letter to the editor from Tim Merchant of the EPS Industry Alliance, an organization representing those in the expanded polystyrene community.

The EPS Industry Alliance has always supported informative articles that advance the knowledge, proper use, and application of foam insulation. That said, the article makes some inaccurate claims … Continue reading Updating values for polyiso

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R-values: Controversy and performance values (cont’d)

November 12, 2013

The first article in this two-part series lays the groundwork for this discussion on R-values and their use as a metric for thermal insulation performance. Now, in this second part, the author examines the real-world use of it as a gauge for ensuring insulation products function as intended.

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