Expansion Joints are the most difficult component of waterproofing systems to keep dry. The reason expansion joints are of such concern is the concentration of movement and forces at these joints. Often the original design did not anticipate these forces, and movement so replacing the failed joint with a similar joint is not the answer. Expansion joint designs, and the materials available both have advanced over the last 20 years, so a new system is commonly the best solution for expansion joint repair.
Waterproofing and expansion joint detailing have become standardized and have more readily tied the two systems together. In some instances, one system can be used for both the waterproofing and expansion joints, as hot rubber is when installed under pavers.
Expansion joint manufactures have learned from joint failures caused by snow plows and street sweepers and now manufacturer's joints which are more resistant to these types of abuse. Engineers and Architects that specialize in restoration projects understand that the original designers did not pay enough attention the expansion joint details, and issue a complete set repair details for expansion joints in restoration projects now.
Lindman installs all kinds of expansion joint systems as part of our restoration work on plazas, facades and in garages.