The backer rod is one of the least glamorous but most important components in an expansion joint sealant application — and one of the most frequently omitted. What is a backer rod? A closed-cell polyethylene foam…
Many low-cost expansion joint systems use mild steel frames. On the surface, the price looks attractive. But over 5–10 years, the true cost becomes clear. Mild Steel Joint Problems: Rusts in moist environments (parking garages, rooftops,…
Architects and engineers sometimes use these terms interchangeably — but they are fundamentally different, and confusing them leads to costly specification errors. Construction Joint A planned break in a concrete pour where work stops temporarily. Both…