Vinyl Siding Window Flashing

The width of the bottom flashing will vary.

Vinyl siding window flashing.

Buy a 10 in wide roll of aluminum at home centers and cut it into 5 in wide strips for the top and sides of the window. Attach the flashing tape above the window and then slip the drip cap into the siding and attach to the tape. It is key to preventing water intrusion. Window flashing is arranged in a manner that directs water down and away from the structure.

Aluminum works best with vinyl. Flashing is critical for a watertight window or door. Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4. 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 an old rag to remove any dirt or debris that may be there. Cut the drip cap to the correct size for your window. Using a pry bar you will need to remove a layer of siding from above the window you want to install the drip cap on. The most important tip to remember when applying window flashing is that flashing should extend past the nail flanges of the window or any accessory to prevent water infiltration.

Window and door flashing guide this collection of articles and videos will help you find the materials and construction details you need for a leak free installation of doors windows siding and more. Some modern vinyl windows however incorporate a j channel right into the window itself. Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located. Cut and bend the tab of the top piece of j channel down to provide flashing over the side j channel.

Lock the notched. The flashing must be long enough to direct water over the nail flange of the last full course of siding. Fold the bottom end of the side piece of j channel inward at the bottom of the window to fit over the existing. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes with the window or door.

Cut the side j channel members longer than the height of the window or door and. Window flashing window flashing is a thin continuous piece of material that is installed to prevent water from getting into a structure from an angle or joint near windows. There is no need to add another j channel.