01Which force is the DOMINANT driver of rain penetration on a tall facade in wind?
02Why can a tighter (narrower) joint leak MORE by capillary action than a wider one?
03What is the defining feature of a pressure-equalised rainscreen (PER)?
04Why must a pressure-equalised rainscreen cavity be COMPARTMENTED?
05What do weep holes do, and what happens if they are blocked?
06A 1200 m2 facade is specified at 1.5 m3/hr per m2 air leakage at 75 Pa. What is the total allowable leakage at that pressure?
07Why is a STATIC water test (ASTM E331) not enough proof for a monsoon-exposed facade?
08How should the water-tightness TEST PRESSURE for an Indian coastal facade be determined?
