Tag Archives: Thermal Insulation

Simplifying Thermal Analysis: Easier methods can demonstrate product and code needs

In the age of high-thermal-performance building envelopes, there can be many surprises when the designed wall system does not meet the expected performance criteria. Sometimes these ‘misses’ are significant and can severely impact the energy use for a building. Transitions from one material type to another, such as opaque wall areas to windows and wall to roof, are often the cause.

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

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.1

When it was created, R-value was really the only useful tool in evaluating the effectiveness of the available building insulations, among … Continue reading R-values: Controversy and performance values (cont’d)

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R-values: Controversy and performance values

by Ken Wells

What exactly is R-value? This question is not asked often enough in today’s environmentally conscious design/construction industry. However, an even better question may be, whether R-value is still a valid unit of measurement for the performance of insulation products. (And, if not, why is it being used as the predominate gauge to compare them.) To answer these questions, this two-part series discusses how R-value came to be and how it is used.1

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Maintaining Montana’s Mechanical Insulation: Energy appraisal of commercial buildings

Used for pipes and process equipment, the potential of mechanical insulation to play a significant role in reducing energy intensity is immense, but it is often specified incorrectly or, more frequently, not adequately maintained. A mechanical insulation energy appraisal was conducted on 25 facilities surrounding Helena, Montana to determine energy-, cost-, and emission-reduction opportunities available through repair, replacement, and maintenance of systems.

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