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Thru-Wall Flashing System Repairs

Mortar Bridging in Flashing System Installation of new flashing system New Flashing System Installed
Defective flashing and the wall cavity is filled with mortar allowing water to bridge across to the backup wall and migrate into the interior of the building. Installation of new thru-wall flashing with end dams, sheet metal drip and aluminum termination bar. Finished wall after installation of the flashing.

What does Thru-Wall Flashing Do?

Thru-wall flashing in cavity wall systems allows the water that enters into the wall system to migrate out. When the flashing system becomes damaged, or is improperly installed, the water that collects in the wall cavity migrates directly to the interior of the building, causing potential mold issues and water damage.

What to Consider when Replacing Flashings?

Longevity and installation is the most important considerations when choosing a flashing product. When installing thru-wall flashing, there are very few opportunities for a “do over.” If installed incorrectly, or with inferior materials, the cost of replacing the flashing will be extremely expensive. 

Thru-wall flashings are generally made of self-adhering rubberized asphalt, copper/metal, EPDM/rubber and PVC/plastic.

Masonry flashing should be placed at the following locations:

Serving the Twin Cities 7 County Area