OWENS CORNING Owens Corning National Settlement Program Update December 1998 1998 OC Backlog Analysis NSP Settlements 176,000 Routine Docket 18,000 Unsettled Cases 5,000 Previously Settled Cases 11,000 Total Cases Filed and In Process 210,000 Backlog Settlement Summary Total Cases Settled 176,000 Total Value of OC Settlement Payments: $ 1.200 Billion OC Settlement Average Payment Per Case $ 7,200 Three-Year Historical OC Average Per Case $ 13,800 * Total Value of Fibreboard Settlement Payments $ 0.900 Billion * Fibreboard Settlement Average Payment Per Case $ 5,500 Three-Year Historical Fibreboard Average Per Case $ 11,500 * Contingent on Supreme Court striking down Fibreboard Global Settlement OC Asbestos Cash Outflow (In millions of dollars) Average 1991-1994 1995 1996 1997 1998 (a) Total Payments $ 301 $ 308 $267 $ 300 $363 Insurance Proceeds $ 252 251 101 97 45 Owens Corning Pretax Cash Outflow 49 57 166 203 318 (a) Defense costs $ 63 Verdicts Paid 117 Routine Settlements 183 Total 1998 Payments $ 363 OC Financing Source of Funds - - Remaining availability under $1.8 Billion line of credit $1.300 Billion - - Financing Alternatives Under Consideration - Additional Long-Term Debt - Convertible Preferred Security - Sale or Joint Venture of Non-Strategic Assets or Businesses OC Asbestos Liability Payments # of Cases $ Billions Settlement of existing backlog 176,000 ($.9-$1.2) Existing settlements and verdicts 11,000 ($.3) Defense and administrative processing costs - ($.2) Future claims processing under NSP and payments to non-NSP participants ($1.1-$1.3) Total Liability (Range of $2.5 to $3.0) ($2.7) Existing Reserve ($1.3) Net Reserve Addition ($1.4) Tax Benefit @ 37% $ .5 Effect on 1998 Net Income ($ .9)