Curtain Wall Spraying

What curtain wall spraying includes

Curtain wall spraying changes or renews the coating on suitable aluminium frames and associated metal sections. These include mullions, the vertical frame members, and transoms, the horizontal members, as well as selected trims and entrance screens. The work can improve the presentation of an office, showroom or retail frontage without removing serviceable frames.

The scope is coating refurbishment. Failed glazing units, damaged gaskets, leaking joints and structural issues need their own assessment and repair plan. Repainting the visible metal refreshes its finish; defects elsewhere in the façade still need separate repairs.

Checking aluminium and existing finishes

Aluminium may be anodised, powder coated or previously repainted. Those finishes need different consideration when selecting an adhesion method and topcoat. We review the existing surface, areas of coating failure and previous repairs before agreeing the specification.

Cleaning, suitable abrasion and a compatible coating system are important for adhesion. A small trial area can check the proposed approach and provide a colour and sheen sample. An on-site liquid coating is a refurbishment finish; it is not the same manufacturing process as a factory baked powder coating.

Preparation and precise masking

Preparation can include degreasing, removal of unstable paint, abrasion and local priming as specified. The condition of the frame needs to be visible enough to identify defects before they are covered. Deep damage or corrosion may require additional treatment beyond a straightforward colour change.

Masking is particularly important around glass, sealants and rubber components. Drainage paths, ventilation openings, opening mechanisms and identification labels need to remain functional. Agreeing these details at survey stage helps avoid a visually neat finish that interferes with the building's operation.

Choosing the appearance

Colour and sheen affect the whole elevation, especially where new sections sit beside older ones. A sample helps the client judge the finish in the building's light and alongside its glazing, cladding and signage. Existing scratches or uneven profiles may remain visible unless suitable repairs are included.

The selected system must be suitable for the aluminium or retained coating and its exposure. Application follows the specified preparation, coat build and drying requirements. Exterior work also depends on wind, surface condition and a suitable weather window.

Access around occupied buildings

Curtain wall refurbishment often involves working above entrances or close to occupied offices. We discuss access equipment, work zones and the movement of staff, visitors and deliveries before programming the job. The appropriate solution depends on building height, available working space and the reach needed to individual frames.

Phasing can separate elevations or entrance areas so the site can plan around restrictions. Where spray products require additional ventilation or exclusion controls, these become part of the method and programme. Working hours are agreed against the actual building requirements.

What to include in your enquiry

Photographs, an elevation drawing if available, the building location and a preferred colour provide a useful starting point. Let us know about leaks, damaged frames or other façade works already planned. Coordinating those repairs before decoration helps avoid coating areas that will soon need to be disturbed again.