Interlox Building Systems Ltd. was established in 1972 as a company specializing in the Pre-Engineered Metal Building Industry. Originally a supply and erect Armco Building dealer, now the primary Butler builder for British Columbia offering supply, supply and install, and total turn-key capabilities. The buildings offered range from small frameless buildings as used by BC Tel Mobility Cellular (Telus), to large truss purlin/rigid frame structures as used by Costco. In addition to complete buildings, the Butler MR24 Standing Seam, Concealed Clip Fastened Roof System is also available as a retrofit to existing sloped or flat roofs or incorporated into new non pre-engineered type structures.