...Rating headroom will remain very strong, supported by favorable markets, internal efficiency gains, and prudent perimeter changes. The building materials market's recovery in second-half 2020 was significant leading to better than expected resilience in operating profit and record free cash flow for the year. Compagnie de Saint-Gobain reported S&P Global Ratings-adjusted funds from operations (FFO) to debt of 35.4% in 2020, higher than the 20-30% range we see as commensurate with the rating. This also reflects cost initiatives outperforming targets, working capital management, and lower discretionary spending leading to record free cash flow; and the benefit from the disposal of its 10.75% stake in Sika AG for about 2.4 billion. Cash on the balance sheet at end-2020 was a strong 8.4 billion, also supported by the suspension of dividends for the year. For 2021, we expect adjusted FFO to debt of about 30%, well in line with the rating, factoring in announced disposals and prudent acquisitions....