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WHAT IS HeatBloc Attic Heat Barrier?

April 26, 2017attic barrier heat heatbloc

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WHAT IS HeatBloc Attic Heat Barrier?

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HeatBloc is an aluminum colored, water-based, low emissivity (low-e) coating. When applied to building materials such as plywood, OSB or plasterboard, HeatBloc lowers their surface emissivity to 0.25 or lower, thereby blocking over 75% of the radiant heat trying to enter the home. It is classified by ASTM as an Interior Radiation Control Coating (IRCC).