How To Flash Window In Concrete Wall

Bill palmer an engineer and the editor in chief of concrete construction a sister publication of jlc responds.

How to flash window in concrete wall.

First consider installation in a wall with an exterior face of foam. The second half of window flashing occurs once the window unit is secured and squared within the rough. The first step is to wrap the sill with self adhering flashing. How to install a window in a concrete wall.

Caulking around the top and sides of window can often provide a temporary fix but over time the caulking will fail. Tek 19 5a flashing details for concrete masonry walls ref. In a concrete wall without wood framing install the window framework by fastening it into the concrete wall with self tapping concrete screws. 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.

The aluminum flashing shown in horgan. Read more on window flashing. Install window in the flashed opening and leave adequate space all around the window for insulation. Flashing single wythe walls at the ends of bar joists which utilize wall pockets for bearing is shown in figures 8 and 8a.

3 includes such details. For example if the windows are flashed incorrectly then siding must be removed around each window to re flash them correctly and properly integrate the flashing with the sheathing wrap such as tyvek. Window flashing is installed at the same time as the window unit. Although flanged windows were designed for installation in wood frame walls the task can be just as convenient and sound in concrete walls if proper procedure is followed.

Seeing doug horgan s photos of corroded aluminum flashing in repairing a stone patio over a living space jul 16 left me concerned about using metal flashing with concrete. What is the best type of flashing to use with concrete. Fill that space with low expansion polyurethane spray foam.