How To Do Siding Around Window Flashing

The first half of window flashing occurs when you or your builder preps the rough opening for the window s installation.

How to do siding around window flashing. Attach the flashing tape above the window and then slip the drip cap into the siding and attach to the tape. All nail holes were set and filled. The second half of window flashing occurs once the window unit is secured and squared within the rough. Cutting and installing the siding 1.

Slip in the flashing lift the bottom shingle and slip in the kickout flashing. At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap. The rot and mold damage occurs when water gets behind the siding or window well. This moisture can get in between your siding and walls seep through the insulation and cause damage both inside and outside of the home.

Use an old rag to remove any dirt or debris that may be there. Nail it to the sidewall or glue it if nailing isn t possible. Using a hammer nail the cap into the siding. Measure the distance from the inside top of the j channel to the locking tab of the course below and subtract 1 4.

Place the piece of siding to be installed under the window along the bottom edge and hold it where it will be located. Instruction on how to install exterior 2x4 trim around a new or old window. Install the trim just under the drip cap. Typically flashing a window is a two part process.

Quality caulking installed in all vertical joints and around the window. Apply a bead of caulk to the felt and set the window in the caulk. Next comes another layer of building wrap installed like the first layer. Window flashing is installed at the same time as the window unit.

The siding fit to the atw trim and installs over the lead flashing. Care was taken not to nail to close to the window edge and into the lead flashing. Lock the notched.