Document a4mdgz6md61pybpzEK8j15wxM

) ______ emoTb: ibject: Bird Incorporated PLAINTIFF'S EXHIBIT D. S. Burks - BBP SHREVEPORT BLISTERING COMPLAINTS From: Date: F. H. Clark - BBQ March 5, 1984 I have checked with Pat Ladner regarding the frequency of blistering complaints on glass shingles. He feels that one of the contributing factors is that the filler is not mixed long enough in the coating asphalt and this is compounded by the higher filler percentages being run. The following is the number of blistering complaints taken from the com plaint summaries: Year 1979 Organic 36 Glass 0 Jm. - 1980 28 0- 1981 22 0- 1982 23 1- ) 1983 28 13 6 T.B. + 7 Flat Jan. 1984 4 0- FHC/cm BIRD 011021