Read more on window flashing.
How to flash a window to vinyl siding exterior wall.
Step 2 materials.
Use a siding removal tool.
Retrofit existing exterior walls by adding base flashing to improve drainage which mitigates water leaks and extends the life of the cladding.
Remove cladding at the base of the wall and examine exposed building wrap felt paper or water control membrane and sheathing beneath it.
Caulking around the top and sides of window can often provide a temporary fix but over time the caulking will fail.
For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.
Remove the pieces of vinyl siding from around the window area.
Estimate the quantity of vinyl siding needed.
Extract nails keeping the vinyl pieces in place in order to prepare vinyl pieces to be removed.
Since you are working with a vinyl siding around the window you will want to be using drip cap flashing over the window or over a top trim that is installed you will have to measure the width of the window to make sure that you get the correct size drip cap.
According to the vinyl siding institute a national trade organization vinyl siding insulated siding and polypropylene siding are exterior claddings not water resistive barriers and are designed to allow the material underneath to breathe.
This vinyl casing can usually be found in the same color as the siding and can be found on the perimeter of the open space in the wall after the window is removed.
One of the most vulnerable areas for siding is transitions.
The flashing can be used over window trim band boards panel intersections and other vertical surfaces.
The type and location of the flashings will vary depending on the type of windows and doors.
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.
Use this tool by inserting it where a piece of vinyl overlaps a piece below it and then sliding it across until you reach the end of.
Multiply width and height to arrive at the square footage.
Do not cut the vinyl off.
Repair torn or damaged building wrap as needed.
Do not exclude window and door cutouts since this provides needed excess materials.
Windows installed into houses with vinyl siding usually have an exterior vinyl casing which holds the window in place.
Measure the width and height of the side of the house treating the measured area as a square or rectangle.
It s important to note that vinyl siding is not designed to be waterproof.
For example if the windows are flashed incorrectly then siding must be removed around each window to re flash them correctly and properly integrate the flashing with the sheathing wrap such as tyvek.
