On January 27, 2023, MDPI published a new research paper entitled “Assessing the Effect of Air Intrusion on Reflective Insulation’s Performance with Horizontal Heat Flow.” Here is a brief overview: In a recent study by Prof. Hamed Saber from the Royal Commission of Jubail and Yanbu, Kingdom of Saudi Arabia and Prof. David Yarbrough from …
The 2023 International Reflective Insulation Manufacturers Conference (I-RIM Conference) was held May 23-25 at the beautiful LeMeridien Visconti Hotel in Rome, Italy. Attendees represented more than ten regions/countries around the world sharing information and research as well as discussing opportunities for the future. The 2-day technical conference was a great success with excellent feedback on …
The Reflective Insulation Manufacturers Association International (RIMA-I) along with ASTM International and their certification team at SEI (Safety Equipment Institute) have teamed up to strengthen the reflective products industry through the voluntary Product Verification Program. This program verifies reflective products meet, or exceed, ASTM standards and codes and are thoroughly tested to perform as claimed. …
The Reflective Insulation Manufacturers Association International (RIMA-I) is proud to share information on a recently published open-access paper by Dr. Hamed Saber of the Royal Commission for Jubail and Yanbu, Kingdom of Saudi Arabia and Dr. David Yarbrough of R&D Services, Inc., in Watertown, Tennessee. The paper is titled “Advanced Modeling of Enclosed Airspaces to …
Introduction A reflective insulation typically performs as a system that incorporates one or more highly reflective (low emittance) surface(s) adjacent to an enclosed air space. Reflective insulations are typically installed on the outside of a duct using spacers to create an enclosed air space between the outer surface of the duct and the low emittance …
The effect of attic radiant barriers on the temperatures of roofing materials is the subject of a recently completed RIMA-I study. Dark roofing material (shingles) can absorb as much as 95% of incident solar radiation and, as a result, will increase in temperature above the surrounding air temperature. The temperature reached by a roof in …
The Reflective Insulation Manufacturers Association International (RIMA-I) recognizes and supports the ASTM standards for radiant barriers specifically ASTM C1313, ASTM C1158, and ASTM C168. Radiant barriers function by reducing heat transfer by radiation. The thermal performance or the reduction of radiant heat transfer is directly proportional to the surface emittance of the radiant barrier material. …
In both the United States and Canada there is significant interest in the use of reflective insulation materials in concrete floor systems. These materials typically have one or more aluminum foil surfaces and consist of flexible foam cores or cores with one or more layers of air filled bubbles (bubblepack). The most common concrete floor …
RIMA-I acknowledges the placement of a radiant barrier on top of mass insulation in attic spaces subject to the following conditions: 1. The mass insulation and ceiling building materials should be checked for any evidence of moisture accumulation. Any existing moisture problem should be corrected before installing the radiant barrier. 2. Radiant barriers used …