Press the cap into the mortar and seal by running your finger along.
Flashing into concrete wall.
Copper receiver cast in concrete wall.
Dissimilar metals should not be in contact.
At the base of walls a sheet metal flashing assembly that extends from the face of the backup wall through the masonry should be used to form a drip outside the wall.
A sheet waterproofing membrane or water resistive barrier is utilized to flash over the back leg of the metal flashing see figure 4.
Spread out mortar on the masonry with a caulking gun.
Flashing single wythe walls at the ends of bar joists which utilize wall pockets for bearing is shown in figures 8 and 8a.
A wall or siding needs special detailing to prevent leaks and damage where the wall encounters any horizontal surface such as a foundation wall top or a concrete porch slab.
This small piece of metal will cover over the seams and create a way for water to run off.
Another method of flashing a concrete wall is to cast the cap flashing into the wall.
The cap flashing is attached to the base flashing by blind riveting.
Flashing is recommended for all locations where moisture may potentially penetrate into a wall and where the free drainage of water is blocked.
This concrete spandrel condition can be used if there is a large distance from the top of the concrete to the shelf angle.
The flashing at the shelf angle is inserted into a reglet cast into the concrete and held with lead wedges.
An alternate base flashing fastening method is to use cleats spaced at 12 o c.
This article series provides details of foundation tops building walls exterior trim wall corners and roof wall intersection flashing to prevent leaks water damage.
Concrete screws come in 3 16 and 1 4 inch diameter in lengths up to 3 3 4 inches.
Step 7 install flashing cap.
Both hex head and phillips head styles are available.
Additional information for flashing single wythe walls particularly architectural concrete masonry walls and means for providing a higher level of structural continuity at flashings is contained in tek 19 2a ref.
The best solution is a preformed or custom bent kick out flashing to divert the water away from the siding.
They can be used in concrete block and brick.
Where the step flashing terminates along a sidewall is a common trouble spot for moisture problems.
In areas where snow may build up add a wide band of peel and stick membrane over the step flashing but under the sheathing wrap as shown.
