Page 384 - Construction Waterproofing Handbook

8.44 CHAPTER EIGHT

FIGURE 8.46 Application of remedial floor drainage systems to alleviate
leakage through slab. (Courtesy of Cosella-Dorken)

FIGURE 8.47 Floor-to-wall detailing for prefabricated drainage sys-
tems in remedial applications. (Courtesy of Cosella-Dorken)

Movement at the joint might exceed the capability of the sealant material originally
selected. The joint design width may be undersized and insufficient to permit the sealant
material to function properly. Actual leakage attributed to the joint might be caused by water
infiltration bypassing the primary seal, requiring a secondary seal or joint to be installed to
correct the leakage problem. Investigation practices discussed previously in Chap. 13 should
be implemented to determine the exact cause of failure before proceeding with repairs. If it
is determined that the sealant has failed due to installation problems only, then the practices
described in Chap. 5 should be used to replace the sealant.
If it is determined that the joint movement is exceeding the capability of the sealant
material or that the joint has been undersized, there are remedial applications specifically