RGJIAYE vapor barrier is a product of woven synthetic with a polymeric coating. It is produced in rolls of varing sizes and performance. This vapor barrier series mainly include roof underlayment with anti-slip surface RGM-BW-RU, radient vapor barrier with aluminum foil on one side or two sides RGM-VP-RB and vapor barrier for scrawl space RGM-BW-CS etc. It can provide excellent water protection and ease of installation and can be used at extremely low temperatures. It also does not dry out, crack, or leach oils in the heat like regular underlayments.