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What is the “R-value” in reflective insulation?

by | Nov 22, 2017 | HVAC Tape

In reflective insulation, the “R-value” refers to a measure of the insulation’s resistance to heat flow. The purpose of the insulation is to help the HVAC system run more efficiently by keeping the conditioned air at the proper temperature without leaking or being affected by the unconditioned air outside of the system, making heat flow resistance a key measurement. A higher R-value represents a greater resistance to heat flow.

R-values for reflective insulation are dependent on the amount of air space that is present between the reflective insulation material and the surface to which it is applied, such as a metal duct. Having an air gap is necessary for reflective insulation to be effective, and the amount of empty space in that gap impacts the insulation’s resistance to heat flow, therefore determining the R-value.

In cases where two layers of reflective insulation are installed, the R-value achieved will be higher than if only a single layer is used, provided that a proper air gap is present between both layers as well as the duct that is being covered.

When installing reflective insulation to achieve a certain R-value, an airtight tape seal is essential. To learn more about tape designed specifically for reflective insulation, visit Shurtape.com.

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About The Author

As a Regional Sales Manager for Shurtape Technologies, LLC, Glenn Walter manages the sales force for half the country in the HVAC and Electrical markets. As a product manager for over four years previous to his current role, Glenn was responsible for leading the product development and marketing support for the Building and Construction Tapes category. Glenn started working with Shurtape in 2012. Before that, he owned construction and framing companies with his brothers. The years he spent on the jobsite helped him create a pretty good foundation in the building and construction fields – so he's been there, done that. It gives him a unique perspective when it comes to tape. Glenn is a graduate of Cornell University with a Bachelor’s degree in Consumer Economics and Housing.