MA-27.3 R-Tech Fanfold Roof Underlayment

MA-27.1 Insulation/Cover Board Attachment

A-27.7 Insulation/Cover Board Attachment Using Bead Adhesive

A-27.6 OSB Attachment

A-27.5 5/8″ Thick SecuRock or Dens Deck Prime

A-27.4 1/4″ or 1/2″ Thick SecuRock or Dens Deck Prime

A-27.3 Minimum 1 1/2″ Thick WeatherBond XP Polyiso Insulation

A-27.2 Minimum 2″ Thick WeatherBond XP Polyiso Insulation

A-27.1 WeatherBond Insulation/Cover Board Attachment

2014 Polyiso Insulation LTTR R-Values FAQ