R matte rmax r matte plus 3 1 2 in.
Faced foam board insulation.
R 3 2 polyisocyanurate rigid foam insulation board.
It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer.
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Johns manville polyiso foam sheathing insulation boards provide a continuous layer of insulation to reduce thermal bridging and improve energy efficiency.
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Foam board sheathing insulation.
R matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board.
Typically sold as sheet insulation in a standard size of 4 x 8 foam insulation panels can help reduce energy costs get a handle on moisture control and more.
Polyiso consists of a uniform closed cell polyisocyanurate foam core and provides one of the highest r values per inch of any rigid insulation.
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Polyisocyanurate is another option coming in as the densest and more expensive option for foam board.
There are a few different kinds of foam board insulation diyers should know about.
This is the same stuff your disposable coffee cup and is made out of and it s used to.