Exterior Windows: Questions Before Applying Nano Coating

Exterior glazing can include specialist glass, films and factory treatments. Before coating, identify the exposed face and confirm that the proposed cleaning and preparation will preserve the window system.

Check the window specification

Ask the supplier about existing surface treatments and care restrictions. Note whether access is safe and practical for both application and maintenance. A coating project should not depend on improvised ladder access or applying product to an unidentified glass face.

Consider the surroundings

Inspect frames, seals and adjacent stone or painted surfaces. Confirm how cleaning liquid and preparation residue will be controlled. Work within the stated product conditions and account for sun exposure on the actual glass, not just the air temperature.

Agree realistic care expectations

Water repellency does not eliminate dust, mineral deposits or the need for window cleaning. Evaluate a representative test for dry clarity and compatibility with the regular cleaning method. Keep the exact coating identity and treated-face information in the building’s maintenance record so future cleaners understand the system.

See interior glass partitions for additional inspection points and explore NANOLAB HOME.