WE DID Box gutters and roofs ending with a parapet wall are always prone to give you water problems. It is very important to follow the correct method when waterproofing Box gutters and parapet walls. Our approach at a waterproofing project on a smallholding just outside Pretoria was to remove all previous waterproofing attempts, clean the affected arias, cut away excess sheeting and start again. Once the box gutter was accessible and clean, openings were filled with cement and primed with Seal Extreme Roof Primer. The end of the sheeting on the box gutter side was covered with fibre flex membrane to prolong waterproofing on joints and openings. Once dried the box gutter section, the first part of the sheeting and parapet walls was painted with Seal Extreme waterproofing compound.
