Learning summary Strategies to prevent water from entering buildings (Newton, 2014) 1.
Remove the opening: can do this by using sealants (silicone) or gaskets (artificial rubber) to fill in the area (mostly in between panels and around openings such as windows and doors). Both of the materials are subject to deteriorate over time from weathering and will need maintaining.
Week 7 2. Keep water away from openings: do this with sills, pitch, eaves, gutters, downpipes, capping, storm water systems, overlapping cladding and wall flashing. These solutions are made from several different materials; for example downpipes could be made from PVC (thermoplastic), steel for wall flashing and masonry tiles, corrugated steel or poly carbonate overlapping cladding on roofs and exterior walls.
3. Neutralise the Forces that move water through openings: this occurs from gravity, capillary action, air pressure, momentum and surface tension. This can be prevented by the use of drips, flashing, slopes, overlaps, and double cavity walls (bricks).
Figure 1 (Ching, 2008, p8.10)
Domes:
Figure 2 (Ching, 2008, p.8.10)