The complex of "Stefanov Motors", representative of "Sofia France Auto" for Pleven, reconstructed its roof. The campaign, which included the same works in several other towns, again included a diffusion floating system made with the bitumen waterproofing membranes of IKO. It consists of IKObase 460P60 for first layer, applied with mechanical fastening and a fully torch welded IKOgum 5000 AD/F for the second layer. The total amount of waterproofing membranes is 2000 sq.m.