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Roofing
NRCA ProCertification - EPDM Installer
Roof Assembly and Substrate
Knowledge Check
Roof Assembly and Substrate
Knowledge Check
Knowledge Check
1 / 12
XPS (extruded polystyrene) insulation provides approximately what R-value per inch and is often used in Protected Membrane Roof Assemblies?
A
R-5.7 per inch
B
R-5.0 per inch
C
R-3.8 per inch
D
R-4.5 per inch
Check Answer
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