How To Flash A Window To Vinyl Siding Exterior Wall

Step 2 materials.

How to flash a window to vinyl siding exterior wall.

Repair torn or damaged building wrap as needed. Do not cut the vinyl off. 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. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.

Extract nails keeping the vinyl pieces in place in order to prepare vinyl pieces to be removed. Caulking around the top and sides of window can often provide a temporary fix but over time the caulking will fail. Retrofit existing exterior walls by adding base flashing to improve drainage which mitigates water leaks and extends the life of the cladding. Estimate the quantity of vinyl siding needed.

J flashing on transitions. 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. 1 2 inch 1 3 cm plywood or osb are common substrates and these are generally covered with roofing felt or another moisture barrier prior to siding the walls. Measure the width and height of the side of the house treating the measured area as a square or rectangle.

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. The type and location of the flashings will vary depending on the type of windows and doors. One of the most vulnerable areas for siding is transitions. 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. Windows installed into houses with vinyl siding usually have an exterior vinyl casing which holds the window in place. The flashing can be used over window trim band boards panel intersections and other vertical surfaces. 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.

Remove the pieces of vinyl siding from around the window area. Read more on window flashing. It s important to note that vinyl siding is not designed to be waterproof. Remove any siding or exterior finish that isn t compatible with vinyl siding and make sure the walls are sheathed with a substrate to receive the siding.

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.