<b><b>Failure solution </b></b><br> Dampcoursing Ltd uses a physical insertion technique as a solution to failed cavity trays.Designed to minimise disruption, it is quick and cost effective method which involves accessing cavities behind external walls by cutting the external skin, removing a predetermined number of bricks, and inserting a spring cavity tray and external flashing. <p></p><p><b>Dampcoursing Limited </b></p><p><b> EO773 </b></p><p><b><b>Deflective grilles</b></b><br> Perp vents and weep vents manufactured by Cavity Trays have integrated deflective grilles to protect against wind-driven rain and insect entry. The grilles assist water discharge from weeps in the face of direct wind pressure, which is beneficial in complying with requirements for weeps to allow water release from closed-circuit damp courses and cavity trays, and prevent water from entering cavities. </p><p><b>Cavity Trays </b></p><p><b> EO775 </b></p><p></p>