DATASHEETS - Physical Properties

Property Comparison Chart	TufSeam with Utethane / Isocyanurate	TufSeam with Glass Fiber	FOAMGLAS®
Density        nominal          lb / cu ft	2	3	8
Thermal Conductivity        at 75°F mean temperature	.15	.22	.33
Maximum Operating Temperature        (degrees F)	250	350	800
R-Value, installed panel        2" of insulation, foil moisture          barrier at 75°F mean temperature	13	9	6
Surface burning characteristics        1" of insulation
- Flame spread	20/25*	25*	0
- Smoke development	50/130	50	0
	(UL 723)	(ASTM E84)	(ASTM E136)

^*Note: This standard is used solely to measure and describe the properties of hte product in response to heat and flame under controlled laboratory conditions.  This numerical flame spread rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.  Values are reported to the nearest five rating.