3598 



Chapter 29 



5 - 



4 - 



3 - 



2 - 



1 1 1 



INSULATION BOARD 



CAPACITY AND PRODUCTION IN 



U.S. 



1950 



1955 



I960 



1965 



1970 



1975 1980 



1950 



1955 



I960 



1965 



1970 



1975 



1980 



Figure 29-11.— Annual data on insulation board in the United States, 1950-1980. (Top) 

 Production (solid line) and capacity (columns). (Bottom) Imports and exports. (Draw- 

 ing after McKeever and Hatfield.^) See also section 23-2. 



