Installation Guide

Made in the U.S.A.
Fiberweb, Inc.
70 Old Hickory Blvd.
Old Hickory, TN 37138 USA
1-615-847-7000 Fax [phone]
www.Typar.com
Typical Window Flashing
STEP 1
Install the window sill pan according to the manufacturer’s instructions. Alternatively, you can create a
sill pan using Typar Flashing Flex. Cut a piece that is 12” longer than the length of the rough opening
window sill.
Carefully pull off the release liner. Center the Flashing in the center of the rough opening and work your
way toward the corners and then up the sides. Note: the flex flashing should overlap to the outside of
the wall by 2-3”. Only stretch the flashing in the corners.
If needed, secure the fanned edges of the Typar Flashing Flex with a plastic capped nail/staple.
STEP 2
Apply a continuous bead of sealant to the back of the window or on the wall. Do not apply the sealant
across the bottom of the sill or on the bottom of the window. This area is left open to allow for proper
drainage.
Install the window according to the manufacturer’s installation instructions.
STEP 3
Cut two pieces of Typar Flashing long enough to extend 1” above the window head flange and 1” below
the window sill flange. Carefully peel off the release liner and apply the flashing on both sides of the
window. Make sure to cover the entire window flange, press firmly either by hand or using a J-roller.
Ensure there are no wrinkles or bubbles.
Cut a piece of Typar Flashing for the head flashing. Ensure that the piece is long enough to extend by 1”
on both sides of the jamb flashing. Remove the release liner and carefully install the flashing. Cover the
window flange and press firmly by hand or using a J-roller.
STEP 4
Release the upper flap of the WRB that you cut earlier. Tape the 45 degree cuts using Typar
Construction Tape or Typar Flashing. DO NOT tape the WRB along the top of the window flange.
1) 2) 3) 4)