To complete the weather-tight shell, the sealants and caukings must be estimated.

Where different materials meet - at expansion joints, at flashing penetrations, and at hundreds of other locations throughout the construction project - they provide another line of defense against water penetration. Often, an entire system is based on the proper location and placement of caukings and sealants.

The detailed drawings that are included as part of a set of architectural plans show typical locations for these materials. When caukings or sealants are shown at typical locations, this means the estimator must include them for all the locations where this detail is applicable.

Be careful to keep different types of sealants separate, and remember to consider backer rods and primers if necessary.

Read more estimating tips for Thermal and Mositure Protection.