b'Step 5:Stick lengths ofimpregnated slowexpansion foam tape tothe two jambs andacross the head of thewindow.Extend the Acrylicimpregnated slowexpansion foam tape onthe head about1 inchlonger to accommodateshrinkage.Fold down the overlapto prepare for insertingthe window.Step 5Step 6:Insert the window into the opening takingcareto be sure the impregnated slowexpansion foam tape isnot disrupted.Use aflat blade puttyknife to adjust foam tapeto avoid any disruption.Using a screwdriver, liftup the overlapped foamtape on the header toallow proper seating of the joint duringexpansion.Step 6 Photos courtesy of IllbruckWindow Fitters Guide to Window Installation91 2020 AWDI, LLC Do not reproduce without permission'