DPC / Cavity Trays
(Identify the most appropriate RIW product(s) for your specific application from the text below and click on the product icon on the right to access the product page for more information and downloadable data sheets).
Damp proof courses are used to prevent moisture from the ground rising into the internal fabric of the structure. They should be installed 150 mm minimum above external ground level and sealed to the general damp proof membrane protecting floor slabs.
Cavity trays are designed to divert water within cavity wall construction through open perpends or weep holes. They are usually used above window and door heads and often at intermediate floor levels depending upon the design of the structure. It is especially important to ensure cavity trays above basements are carefully installed with fully taped and sealed joints to prevent water bypassing the tanking membrane.
RIW Sheetseal 9000 is a traditional polymeric DPC that is supplied in a range of widths that can also be formed into cavity trays. Standard preformed stop-end, corner and change in level units are available as well as specially fabricated units for specific projects. RIW Sheetseal 9000 is compatible with all RIW tanking and damp proof membranes and utilising these will avoid disputes between manufacturers for this critical element of the design. |
