EWP Panel Test Data

Test	Purpose	Procedure	Results
Thermal Resistance	Determines insulating properties of the panels	ASTM C 236 Guarded Hot Box	Good R values for an HCFC Foam System (see published values for panel type and thickness)
Air Leakage	Measures air leakage through the panel joints	ASTM E 283 Chamber Method	The leakage rate for panel will not exceed 0.01 CFM/SF at 40 psf pressure differential
Water Penetration	Measures water leakage through the panel joints	ASTM E 331 Chamber Method	No water penetration at pressure differential of 50 psf
Strength	Determines the load/span properties of the roof and wall panels	ASTM E 72 Chamber Method	Panel load/span and deflection tables are available
Ignition Properties	Determines ignition temperatures of the panel core material	ASTM D 1929	Self-ignition temperature is 860 degrees F. Flash-ignition temperature is 842 degrees F.
Surface Burning	Determines the surface burning characteristics of the core and panels	Underwriters Laboratories UL 723 (ASTM E 84)	Core Material (5") Flame Spread 20*, Smoke Developed 400 Finished Panel 2" to 5" Wall Panel Flame Spread 15*, Smoke Developed 250 - 450
		Southwest Research Institute ASTM E 84	Finished Panel 2" to 5" Wall Panel Flame Spread 10*, Smoke Developed 145
Room Fire Test	Evaluates the burning of roof and wall panels in a room configuration	Factory Mutual STD. 4880 (1994) (UBC 17-5)	Panel is rated Class 1 to 30 ft. high, 5 in. max thickness

Note: The numerical flame spread rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.

EWP Panel Thermal Properties

Product Code	Thickness	"U" Factor	"R" Factor
EWP 200	2"	.072	13.9
EWP 250	2 1/2"	.058	17.3
EWP 300	3"	.048	20.8
EWP 400	4"	.036	27.7
EWP 500	5"	.029	34.6

Note: Insulation values determined by tests conducted in accordance with ASTM C 236 at a mean temperature

of 75 degrees F., winter condition corrected to 15 mph outside and still inside.