Page 439 - Construction Waterproofing Handbook

THE BUILDING ENVELOPE: PUTTING IT ALL TOGETHER 10.41

FIGURE 10.44 Transition detailing for cladding materials involving numerous subcontrac-
tors. (Courtesy of TEC Specialty Products, Inc.)

A barrier meeting should be used to assign responsibility for each of these waterproof-
ing transition details. In this situation, while the manufacturer notes that the membrane
flashing around the pipe is not part of the EIFS system, the general contractor should cor-
rectly note that this material should be installed by the EIFS subcontractor to ensure they
have complete responsibility for the entire water drainage system. The sealant joints
around the pipe penetration should also be reviewed, and it is likely that the waterproofing
contractor would complete this work. However, should leakage occur in this area, it would
be difficult to determine if the water was penetrating directly through the primary transi-
tion sealant joint or from the divertor system that includes the membrane flashing that
might have lost adherence to the pipe. The contractor in the barrier meeting might require
the EIFS subcontractor to take complete responsibility for this entire detail, to prevent
problems in assigning cause and responsibility if leakage in this area should occur.
These two details show the importance of barrier meetings and how common 90%/1%
installation problems can be prevented, and also how best to provide a quality installation