Page 432 - Construction Waterproofing Handbook
P. 432
10.34 CHAPTER TEN
FIGURE 10.35 Vertical-to-horizontal transitions must be watertight. (Courtesy of Emseal)
As with waterproofing systems, water leakage through roof areas is typically located
within 1 percent of the entire surface area, most often occurring at termination and
transition details. This often occurs at equipment supports, equipment pads, plumbing
stacks, scuppers, drains, skylights, and lightning and electrical equipment. Detailing tran-
sitions properly, and providing differential movement at these areas, ensures watertight
transitions to roofing materials. Movement allowance for roofing details includes move-
ment created by vibrations from mechanical equipment. Figures 10.36 and 10.37 detail
transitions between multi-ply and single-ply roofing systems into deck-coating or mem-
brane waterproofing systems.
