Roof top Air Conditioning units and walkways are usually a real problem for roofers. Not only is access without damage next to impossible but mechanical engineers may have to be called in to disconnect and later recommission the AC units, meaning time and expense for the person or business having their roof done. This is one area (among many) where polymer roofing comes into its own. On our most recent job at the Marine Hotel on Aberystwyth's seafront, the roof had both AC units and a large walkway, both of which we were able to deal with without calling anyone else and with no damage to ANYTHING. All this and the entire roof was finished in just 4 days. Click to find out how we did it.