Hydro Guard & Pure Guard is the perfect combo to protect & self-clean building exteriors

THE CHALLENGE

On this 85 year old brick residential building, soiling builds up quickly, not only on the bricks’ surface, but even on the grout. Constant power-washing wastes water, may lead to substrate damage, and is not a cost-effective long-term solution. With water ingress, atmospheric soiling, organic mold and algae can also easily take hold, making exterior vertical surfaces appear dirty.

THE SOLUTION

Hydro Guard was chosen to create a water-repellant barrier, and as the exterior brick wall receives a decent amount of sun exposure. Pure Guard was chosen to help break down surface soiling and prevent future organic growth to reduce cleaning frequency and costs.

IMPLEMENTATION

1. Surface Preparation: The exterior brick façade was professionally power washed and cleaned.
2. Application: Hydro Guard was applied liberally using a pump sprayer until the point of rejection, on both the brick surface and the mortar joints. It was allowed to fully dry. The following day, Pure Guard was applied using a pump sprayer over the same area, also to the point of rejection, and allowed to dry.

2.5 years POST-APPLICATION RESULTS & evaluation

2.5 years after application, the combined treatment of Armus Hydro Guard and Pure Guard on an exterior brick wall demonstrates sustained effectiveness in both water repellency and surface protection. Water beading remains readily apparent on both brick and mortar surfaces, indicating a robust barrier against water ingress.

The ongoing water-repellency of the Hydro Guard treatment protects the wall from potential moisture-related issues like efflorescence and freeze-thaw damage, while Pure Guard's self-cleaning properties minimize organic growth and maintain a clean surface aesthetic. These results highlight the synergistic benefits of Hydro Guard and Pure Guard in long-term exterior wall protection.