Flashing Under Sliding Door Deck

How to prep for installing an exterior door by making custom metal flashing.

Flashing under sliding door deck.

Helping to direct water down and away from your home this waterproofing technique is especially important to use on roofs and around windows and doors. The area that is brick will have a typical z flashing into a cutout in the brick joints above and then over the ledger. The door flashing pan is bent up and caulked under the door sill so that water will not be directed into the building by. Flashing refers to thin sheets of material installed around a home s exterior to prevent water from seeping inside.

On the exterior the pan flashing should lap over the deck or masonry flashing below. Both will go over the ledger. Figure 3 27 above pan flashing and threshold details below an entry door. Slip the siding up and around the door slip the back flashing under the siding at least 3 at the top and the sides.

Remove the existing interior and exterior sliding door trim remove the existing sliding glass door remove any deck boards restricting the installation of proper deck flashing install a copper door pan and copper deck flashing copper seams will be soldiered re install the existing sliding. Flexwrap will be used under the duraflash in the door area. This joint in the brick will then be back filled with silicone. The ultimate goal is to create a series of overlapping layers of flashing material so that any water that gets behind the door trim from above the door or along the sides is captured and redirected.

Whatever material is used all pans should have a dam on the ends and along the inside edge. Pro builders erik and jaime perkins explain how to build better homes by build. This will ensure water doesn t infiltrate behind the flashing. Figure 3 26 above flashing details above and below an exterior door.