Following North Korea's nuclear test in October 2006, Security Council members imposed sanctions on Pyongyang. The targeted sanctions include an embargo on military and technological materials and luxury goods, as well as a set of financial sanctions.
PVC roofing system. This roofing system is highly reflective and very durable. PVC is one of the top flat roof options because it is easy to install and lacks water permeability, meaning it can resist water ponding. Itâs three main benefits are very comparable to number 5 on the list, spray-applied roof coatings.
When you do have to make a choice, the style of roofâpitched or flatâis the first consideration. Materials for a pitched roof include wood shakes and shingles, asphalt shingles, tile, metal, and slate. You can cover a flat roof with tar and gravel, modified bitumen roofing, EPDM rubber roofing, asphalt roll roofing, metal, or PVC membrane.