envelopelearning@mainstreamcorporation.com phone303-912-4833
TESCON Vana--When everyone adds it to their tool belt things just get tighter. Used to install Vapor control layers and Weather barriers. Can seal emergency leaks around connections or penetrations as necessary. 2-3/8" wide.
Mainstream Corporation is a Colorado based Passive House Design, Consulting firm. Specializing in Passive House Products for your building project.
