** Travis Perkins TPK.L slides as much as 13% to 478p, lowest since July 2009
** British building materials supplier flags challenging start to 2025, blaming high interest rates and uncertainty over the pace of construction market recovery
** Posts 25% y/y drop in 2024 profit
** Expects 2025 adjusted operating profit, excluding property profits, to be broadly in line with FY24's 141 mln pounds (~$182 mln)
** TPK sheds ~25%, as of last close
($1 = 0.7741 pounds)
(Reporting by Rupali Chaudhary in Bengaluru)
((Rupali.Chaudhary@thomsonreuters.com))