CLIFF NOTES: Your Go-To Guide

Protecting Concrete and Block from the Elements: Exterior Coating Case Study

Due to multiple exterior substrate issues at this Plymouth property, past paint jobs had failed to bond properly, resulting in coating failure. After assessing the building exterior with several coating partners, Future City identified the key underlying issues and devised an effective solution to facilitate better coating adhesion, despite the on-going substrate challenges.

Underlying Issues:

    • – Concrete was chalking due to water intrusion
    • – Previous coatings improperly applied
    • – Older block was deteriorating due to defective bonding additives

This building was suffering from a number of issues. First, the exterior concrete was absorbing ground water, which moved up the wall, causing efflorescence (chalking) to appear on the surface.

In another area, the previous coating had been improperly applied during cold temperatures. This caused white resin to release from the paint and stain, leaving an unsatisfactory appearance.

Finally, the block used during construction in the late 70’s had been manufactured with a defective bonding additive, which caused ongoing deterioration of the material.

Future City Solutions:

    • – Applied elastomeric coating to seal chalking
    • – Identified primer/coating system to lock in white binder/stain
    • – Repaired block deterioration; applied protective acrylic coating

To mask the chalking and seal in the groundwater, we applied an elastomeric coating, which retains maximum flexibility to wrap around the porous surface of the building (much like a balloon). This provides superior protection against water seepage.

For the area that had been improperly painted, we worked with a coating manufacturer to identify a specific primer/coating system to lock in the white stain, preventing the product separation that had occurred previously.

Finally, we partnered with a high-quality concrete repair shop to address the deteriorating block. Once the necessary repairs were complete, we applied a 100% acrylic coating to protect the substrate from wind-driven rain and other harsh elements, greatly reducing future deterioration.

As in this case, we are thrilled to deliver valuable solutions to clients, seeking to identify specific products and application methods to repair or enhance the performance of a property. It has been said, “Do what you love and you’ll never work another day in your life.”

This solution search is the reason we love what we do!

Have you dealt with external concrete or block damage? How have external elements damaged your facility?

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