<p>This Architectural Drawing is of Capping Details. Cappings and copings are <strong>used to cap the tops of masonry parapets and freestanding walls to prevent rainwater from penetrating into the construction below</strong>. They can be made from profiled metal such as lead, aluminium, zinc, copper and plastic-coated steel, or by using special bricks or masonry. A coping is an architectural fabrication that lays on top of a wall and comes down the sides of it, encasing the brick and providing weather protection. However, a capping <strong>sits on the wall with its edges flush to the width of the wall</strong>. As subbase, capping or fill material, <strong>the material is exposed to natural outdoor conditions, potentially including sulphates that may be present in the surrounding soils</strong>. It is standard practice to evaluate the resistance of the aggregate to weathering, in the form of sulphate soundness tests. They are constructed by: Laying a relatively thin layer of material (<strong>max.</strong> <strong>250mm</strong>). Thoroughly compacting the layer. For more knowledge and Information download the drawing file.</p>