Wedge Gaskets

A Wedge is a gasket whose primary purpose is to prevent water entering a joint and which will normally be located on the exposed side of the joint.

This system shows a wedge gasket to the exterior with a pre-set sponge (closed cell) to the interior. These components rely on compression to minimize air and water infiltration. These systems are designed to accommodate some water infiltration. If the window and/or wall system unit is allowing water to enter the structure, testing should be done to determine the entry point(s) of the water.  If the internal metal-to-metal seals have been confirmed to be performing properly, the exterior wedge may be replaced (assuming the interior gasket is still performing properly) with a new wedge gasket. This gasket has the ability to accommodate a certain amount of joint tolerance while limiting air and water infiltration. If the internal metal-to-metal seals have been determined to have failed or were improperly installed the most economical method of correcting the problem may be to wet the seal exterior with a cap bead of silicone sealant.

This system shows a sponge (Closed Cell) gasket to the exterior with a dense drive-in wedge to the interior. These components rely on compression to minimize air and water infiltration. These systems are designed to accommodate some water infiltration. If the window and/or wall system unit is allowing water to enter the structure, testing should be done to determine the entry point(s) of the water.