Repair crews call a sealant band laid over a failed or leaking joint a band-aid, a nod to both its shape and its quick-fix reputation. Done right, with bond breaker, clean faces and adhesion testing, it can last for years. Done as a smear over dirty old sealant, it fails in a season and makes the eventual cut-out harder.
Owner won't pay for R&R this year, so it's a band-aid on the worst stacks until the budget comes through.
Also heard as
- band-aid joint
- overband
Related terms
Bridge joint
A band of sealant laid over the face of a joint, bonding to the surfaces on either side instead of filling the gap.
R&R
Remove and replace: cutting out old sealant completely and installing new sealant in the cleaned joint.
Bond breaker
A tape or material at the back of a joint that sealant will not stick to, preventing three-sided adhesion.
Adhesive failure
A sealant pulling cleanly away from one joint face, leaving the substrate bare.