Clayton, Dubilier & Rice, a private equity firm, agreed to invest $105m in SIG, specialist building products supplier. CD&R’s investment is part of a wider equity raise proposed by SIG, worth approximately $185.4m. The investment has a guaranteed minimum of $89.5m, conditional on the total amount of equity being raised and satisfactory amendments to the group’s financing facilities being agreed,. “I am pleased to welcome Clayton, Dubilier & Rice, an experienced business builder in our industry, as an investor, and we look forward to working with the CD&R team,” Steve Francis, SIG CEO.