Fitting Synergie Airtight Window tape 150mm to window

Fitting of Synergie Duo Window Tape 150mm with full adhesive backing and split pvc liner backings to pre-plastered window reveals, head and cill details. Sealing all four corners with Synergie Grey Fleece Tape 60mm

[@handle1196]

Great job and just what i was looking to learn. Thinking far ahead, is there anyway to real seal in the future if you need to change your window frame 20 years later without wrecking the inside of the house?

[@jpshomevideos]

What do you with the dpc at the sill?