Cold Weather Payments Ms Abbott To ask the Secretary of State for Social Security what estimate she has made of the additional costs which would arise from the use of wind-chill factor on cold weather payments if payments in respect of properties not affected by wind-chill remained the same. [14940] Mr. Denham This option was among a number which have been considered. Full details are contained in the Building Research Establishment's report, copies of which are available in the Library.