Do I need expansion joints?

When a large area of epoxy grout is poured, it is recommended to install expansion joints to reduce the possibility of the grout cracking.

What is the purpose of an expansion joint?

The purpose of an expansion joint is to engineer a controlled crack in the epoxy grout to reduce the possibility of random cracking, when machinery to grout temperature differentials of 50°F are encountered.

Are expansion joints necessary?

When a large area of epoxy grout is poured, it is recommended to install expansion joints to reduce the possibility of the grout cracking.

Can a crack form next to an expansion joint?

Yes, a crack can occur next to an expansion joint, this does not mean the gout has failed, however, you will need to seal up that crack with expansion joint material or a silicone caulk (RTV) to prevent liquids from getting to the foundation.

What do I do when I get a crack in the epoxy grout?

When you get a crack in the epoxy grout you will need to seal up the crack with expansion joint material or a silicone caulk (RTV) to prevent liquids from getting to the foundation.