How to install nail fin windows in 5 common wall types builder jake bruton demonstrates trusted window flashing details for walls with the following water resistive barriers.
Flashing exterior windows over siding with wood.
Install the window and tape the flanges to the housewrap or tar paper with flashing tape such as tyvek contractor tape.
Figure 3 26 above flashing details above and below an exterior door.
On the exterior the pan flashing should lap over the deck or masonry flashing below.
The flashing can be used over window trim band boards panel intersections and other vertical surfaces.
If windows and doors are properly protected with splines of felt or flashing tape there is no need to caulk the joints where siding meets the side casings.
One of the most vulnerable areas for siding is transitions.
The best option for windows is the type with a vinyl flange all the way around.
T1 11 exterior wood siding has been in wide use for over 30 years and is distinguished by vertical grooves that simulate a spaced board appearance available in 4 6 8 and 12 inch groove spacing.
If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing.
Whatever material is used all pans should have a dam on the ends and along the inside edge.
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.
The type and location of the flashings will vary depending on the type of windows and doors.
Instruction on how to install exterior 2x4 trim around a new or old window.
Figure 3 27 above pan flashing and threshold details below an entry door.
For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.
If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this.
J flashing on transitions.
How to install z flashing on t1 11 siding hunker.
