Butler's mr24 standing-seam aluminium roof system has been installed at Microsoft's prestigious uk headquarters in Reading, by TP Bennett, to provide long-lasting weather protection. mr24 offers a combination of good looks, long life and minimal maintenance. Its unique 360degrees seam is both air- and water-tight and provides friction-free thermal movement. And the 600mm module width creates an aesthetically pleasing appearance, resembling a traditional lead rolled roof. mr24 was specified for the complete 6300m2 roof area, in natural aluminium finish.