GLOSSARY TERM
Crack Bridging
The ability of a coating to cover and protect minor cracks in the substrate.
INFO
What it is
Crack bridging is the ability of a coating to stretch over and cover fine cracks in the substrate without splitting, maintaining an unbroken film across small movements.
Why it matters
Buildings move and develop hairline cracks over time. A coating that can bridge them keeps the surface looking sound and stops water reaching the substrate through the cracks.
Where it is used on a project
Valuable on render, masonry, and exterior surfaces prone to fine cracking, where a flexible, weatherproof finish is wanted.
How NECC approaches it
Where a surface is liable to fine cracking, we can specify flexible coatings that bridge movement, protecting both the appearance and the fabric beneath.
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FAQ's
What is crack bridging?
It is a coating's ability to span and cover fine cracks in the surface beneath without splitting, keeping the finish intact and weatherproof.
Which coatings bridge cracks?
Flexible, elastomeric coatings are designed for this, as they stretch with surface movement rather than cracking.
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