Document 0gDMJzyOEGGnpGzjZXmKw3gGR

PLAINTIFF'S EXHIBIT SRD BBQ BBH BBR RESEARCH AND DEVELOPMENT PROGRESS REPORT BBH PPL MS Corporate Technical Center PSL Bird A Son, Inc. Dr. Schnizer Mr. Clark Mr. Sutton Mr. Wood Mr. Patenaude Mr. Hadfield Mr. Colvin Mr. Kirklin Project No. 007 Report No. Written fay 44 Jagocki DateAug. 28, 197? Project Title: studies of performance properties of roofing Subject: Object: .. | # Program for Testing Current Bird Shingle Plant Dry Felts a Shingles Made' From the Same Felts Trial Run 79-3 To make W/S Snow White shingles at Shreveport with 527 Asphalt and 3% Wax Dots in place of regular Wind Seal Adhesive. These were to test fr a less firm bond between shingles in the sduthern area of the countryand possibly relieve stresses that cause horizontal cracking. This report covers the starting dry felts used In this run at the htart and end of each roll to establish weight, caliper, strength and saturating properties. Conclusions; 1. The felt was quite variable in O.D. weight across the 48" width with 56% failing the D.L. minimum when tested by lane. 2. The other properties were typical of Shreveport felt for tensile, kerosene number and xylene. Resultsi 1. Roll, R-14 BFB was quite a bit below the U.L. -tiiniiaum weight at the start in all four lanes. This was still , light in lanes 2 and 4 near the core. 2. Roll R-26 BJT was light in lanes 1 and 3 at the start and light in lane 3 at the end. BIRD 014154 RESEARCH AND DEVELOPMENT PROGRESS REPORT Project No. Report No. 0? 44 Page_ 2 Porosity as determined by the Gurley densometer was generally the same level as previously determined on Shreveport 55 lb. organic felt. Porosity is a factor of "openness" of the sheet which would influence speed of saturation. Porosity was average for Shreveport felt. The kerosene numbers were in the 172-179 range except for two values on roll R-26 BJT which were in the low 180',s. This represents the somewhat lower saturating capacity as previously found for Shreveport felt. Tensile strength was in the high 30's - low 40's in the MD. This would be typical of recent Shreveport felt. .6 The xylene values were in the low 20's which generally would mean a satisfactory rate of saturation. Discussion: Samples from the top and bottom of two rolls of Shreveport 55 lb. organic felt were sent to BBH for testing. These samples were cut to represent the four lanes of shingles produced with them and tested for routine physicals including O.D. weight, caliper, density, MD & CD tensile, porosity, K# and xylene. The experiment was to produce some shingles with 527 asphalt and 3% wax Wind Seal dots to see if a weaker bond between the shingles could help reduce the horizontal cracking tendencies in the south. It should be noted that both rolls were Shreveport "B" rolls which are the middle roll out of each reel. The "B" rolls usually have less extreme weight variations but are also usually lower in O.D. weight. The lower weight was found in these samples. Data: See attached Table. Bibliography: R. F. Jagocki, Lab Notebook #302 pp 38 - 40 RFJ/ac attach. v BIRD 014155 P h y s ic a l P ro p e rtie s o f D ry F e lt Used in S h in g le s P ro d u c e d a t FS w it h 527 A s p h a lt a n d 3% Wax D o ts 0> 1--1 u G, H X2 CO 4h 0 0) 0) a) G <D i--I CO P o a * at 4J w X5 &\ K & fti 01 o f\ G CN dP 3: oi in ro c JJ c in CN rH CO ro IN CN CN CM in in * ro H m rH CM CM CM CM OOlrlO CN rH CN CN in in cn o o o rH CN CN CN =tt= 1 1 i--0)i *rt 4P-* -G UQ 01 O G0) CO/3 =#= & in ro ID 10 r~ r- r-' r- rH r-t i-t r-$ CM ro in n- H rH H rH r- i--1 IN o r- co oo ov i--i i--l i--i i--i OtSHtl NOINN -t}1 N1 in o CM VO m cn vo >cr mti* <n <n <T> I- Cl f" r- r- r- rrl r) H rl rlOCNrl t-- ID l> co rH f--I rH rH r cn vo cn OOOiHO CO ro rj< Tl< "4* CO i-4 CN r-~ n 00 00 r-t r-t rH rH in i-4 00 O OtOlOSO HrlHN rl H P) H fl'JHN *4i 'S' n* <*> >4<H P >lO -HOOP to o N\id uoo o at o cm m to o >n P -P h m cn \ G ra at xt a -4 u <u CM H U rH -rl at o CN -P +1 m o 00 Q^ s O 03 XI H 00 rH CN OlOlOrl r| rH CO CO CM rH o cn rH o rH rH H NON'in 00 CO CO C\ cm o\ in 00 t*- 00 rH N>r4 00 rH NOHO i-4 CN CN CN CM CM CM CM N1 CO N CO OMnoi CN O CN rH CN CN CN CN cn vo in in in "S' N1 r- H CN CN CN CN CN CN CN ID CO CO in rH cn CM CM rH CM CN CN CN CN in r- cn oo oo in m in in oo oo in in OhO^C\ vo in in in oooo a\ ctx oo o in in in id o oo o rH O O O VD ID 10 ID OOOO CO in VO rH in cn in Oi H H H in in in ro r-* id cn vo cn co r* ro H in ** in in HOIOO 00 cn rH vo O CN CN up in in in in -Homo t-- CN rH vo in cn cn cn in in in in rl CN O) N1 at G at ih m 1-4 pH =tt= m -p rH tH N* rH nJ rl 0+> 1 P$ C/3 P5 rH CN cn u G P3 rH CN m 0 G t Pt Eh cn in Nt= +t CQ P rH at VO rH -P CN O 03 1 P$ H cn cn np O G W ; ' ft BIRD 014156