WCA stands for Wide Cavity Applications and the versatile type WCA offers the solution for cavity widths from 150 mm to 330 mm.

The WCA acts as a DPC, an insulator, physically closing the cavity between the inner and outer skins.

As the cavities widen, the rotational predisposition can increase, and the sides of the WCA-type closer are friction-locked to accommodate some initial movement prior to plastering.

To learn more about the applications of cavity trays with wide cavities Click here.