One of Wednesday's biggest fallers was building materials group CRH, which has seen shares fall since delivering its interim results on Tuesday morning. The company said the sector had had an "encouraging" start to the year, but that it had been trading against a backdrop of "modest, if mixed recovery" across its main markets. It also said that trading in America had been affected by severe weather conditions for the second successive year. British American Tobacco and Mondi were both notable fallers after going ex-dividend. Property group British Land dipped on the news it has sold its 20,500 square-foot office building at 52 Poland Street in London to Amazon Property for £26m. The sale of the Soho asset, which reflects a capital value of nearly £1,300 per square foot, "attracted very strong interest", according to British Land's head of offices Tim Roberts, "reflecting the strength and depth of the West End investment market".Beverage companies Diageo and SABMiller were all trading in the red on negative read-across from Carlsberg after the Danish brewer said that sales have been hit by falling demand in Russia and Ukraine because of geopolitical tensions.Meanwhile, mining and trading giant Glencore saw its shares move marginally higher after it reported an 11% increase in its interim dividend and unveiled a $1bn share buyback after profits rose in the first half of 2014.FTSE 100 - RisersRoyal Mail (RMG) 446.20p +1.69%Anglo American (AAL) 1,598.50p +1.27%Rio Tinto (RIO) 3,451.50p +1.08%United Utilities Group (UU.) 884.50p +0.97%AstraZeneca (AZN) 4,279.00p +0.96%SSE (SSE) 1,519.00p +0.93%Centrica (CNA) 317.00p +0.67%BHP Billiton (BLT) 1,977.50p +0.64%Coca-Cola HBC AG (CDI) (CCH) 1,361.00p +0.59%Wolseley (WOS) 3,196.00p +0.47%FTSE 100 - FallersCRH (CRH) 1,379.00p -3.43%3i Group (III) 382.40p -2.45%Barratt Developments (BDEV) 359.80p -2.39%Persimmon (PSN) 1,318.00p -2.37%British American Tobacco (BATS) 3,505.00p -2.14%Hammerson (HMSO) 601.50p -2.12%Associated British Foods (ABF) 2,835.00p -2.07%Mondi (MNDI) 1,004.00p -1.86%Sports Direct International (SPD) 713.50p -1.79%Sainsbury (J) (SBRY) 306.40p -1.76%NR