Vaproshield is the industry leader when it comes to self adhered air barriers for the building envelope.  Vaproshield provides peremable air barrier solutions for roofing, walls, mass timer floors, open joint cladding systems and panelized projects.  As part of their full solutions approach the company has recently launched BlockShield, a non-permeable air barrier to provide contractors and designers a solution where impermeable membranes are required. Vaproshield also supplies a full line of accesories to ensure that your project will be air tight and perform as designed.