De Wet v North Shore City Council [pdf, 323 KB]
...sealant works if there are only two surfaces to be sealed but is not usually adequate for three surfaces where there is required to be a bond breaker. I was referred to the Sikaflex construction detail which read: "If the joint has a solid, formed base it is essential to apply a bondbreaker tape to this surface in order to prevent back adhesion. This will then allow the sealant unrestrained movement throughout the depth of the joint." Mr Grigg, in reference to unit...