A vertical DPC is incorporated in the reveals of a cavity wall to
A) Prevent the jamb of the window getting wet
B) Prevent the wall ties from slipping
C) Prevent rain penetration across the wall
D) Prevent condensation from entering the cavity
E) Secure the door frame to the wall

Question

Quizplus · Accepted Answer

A vertical DPC (damp proof course) is incorporated in the reveals of a cavity wall to prevent rain penetration across the wall. It is typically installed between the window or door frame and the cavity wall to prevent moisture from entering the cavity and causing damage or dampness to the interior of the building. While it may also help prevent condensation from entering the cavity, this is not its primary function.

A Vertical DPC Is Incorporated in the Reveals of a Cavity