For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.
Window tape for siding.
Roll tape over the top flange letting it run past the side pieces by 2 in.
The window is now ready for casing and siding.
Once the top piece is in place fold down the housewrap tab.
While it may seem like a tedious and minor step while installing a new window or replacing siding it s crucial you get it right.
If you are like most people you have no idea what window flashing tape is let alone how to install window flashing tape.
If you don t want to mess with housewrap and tape around the windows consider using one of new liquid flashing products which you can read about at this link.
Leave the bottom flange tape free.
Flashing tape photo 6 is a thick pliable waterproof tape that goes under or over nailing window flanges sill and top flashing and house wrap.
Protecto wrap 6 in.
Roll of 4 in wide material.
If the window is a right angle i would treat the point at the high side of the window the same way with a flexible flashing sealing over the high point of the window.
The type and location of the flashings will vary depending on the type of windows and doors.
If you re siding right against the window.
Adheres to vinyl plywood osb foam metal aluminum and masonry.
Available wherever you buy your windows it s usually sold in a 50 ft.
Window and door sealing tape is great for use around doors windows and nailed fins and flanges.
If you have vinyl or metal flanged windows for instance you can install drip cap flashing 4 the home depot over the window itself or over the top trim piece that you install.