Both Steve and his wife, Arlene, carry DP-2 policies on their $135,000 home. Steve's policy has a limit of $108,000 and Arlene's has a $27,000 limit, and both policies pay on a pro rata basis. After a hailstorm causes $13,000 in damage to their roof, how much of the damage will be covered by Steve's policy (ignoring any deductible)?