The Hyload Jamb Closure Membrane (Jam Flashing) is a
12" polyreinforced membrane, incorporating
DuPont’s Elvaloy KEE polymer (40 mils) and 4"
of rubberized asphalt (15 mils) with a silicone
release paper.
The Hyload Jamb Closure
Membrane (Jam Flashing) is a tough watertight sheet
membrane that provides closure between air
and vapor barriers and windows.
The rubberized
asphalt part of the membrane is adhered to the
inside of the window opening.
The non-rubberized
asphalt portion of the membrane is adhered
with Hyload Structural Sealant to the exterior
wall’s jamb.
The Jamb Closure Membrane (Jam Flashing) can be used in residential,
commercial and industrial applications.
Flashing Membranes
