Install Flashing On Concrete At Wall

The flashing can be attached to this angle and extend over the top of the foundation wall to the exterior.

Install flashing on concrete at wall.

Although flashing is the primary focus of this tek it should be understood that the role of vapor retarders air barriers and insulation are also important elements to consider for any wall design as the performance of the entire system can be dependent on. Extend the flashing from the backup through the exterior wythe. This procedure permits any water that may penetrate to the interior surface of the concrete masonry wall to drain out at the base of the wall. 3 includes such details.

Flashing also should be installed at each shelf an gle throughout the height of the wall. Weep holes should project completely through the wall thickness. In this video i will pro. Tek 19 5a flashing details for concrete masonry walls ref.

The proper installation of flashing at the point where the roof meets wall is to use metal step flashing. And be capped on top with either a preformed metal drip cap or a custom flashing installed under the sheathing wrap. To allow moisture to escape in the first course above the flashing install weep holes in the head joints every 2 feet on center. The flashing tape runs over the top of the metal flashing and is bonded on its upper half to the wall sheathing and lower half to the metal flashing.

At left you can see that the peel off paper exposes a nice and gooey sticky surface of the flashing tape. There should be no nails below the area covered by the flashing tape. Cut a slit in the sheathing wrap along the entire length of the water table and slip the upper leg of the flashing under the wrap see illustration. Install the lathe and stucco to the first bend in the weep screed.

Install the water resistant barrier to overlap the top edge of the weep screed. Furring strips installed to receive the plastic vapor retarder and the interior gypsum board will hold the flashing in position. Stucco cladding install self adhesive flashing behind the weep screed a perforated metal strip at the base of the exterior walls at the height above grade specified by the local building code. The water table should overlap the foundation by about 1 in.