
Asia-Pacific Β· Window Manufacturer
Jangho Facade β Window Cleaning Guide
π¨π³ China Β· Last reviewed by Justin Orloff
Quick Facts
Founded
1999
HQ
Beijing, China
Materials
Aluminium unitised curtain wall, glass facade, aluminium composite panels
Specialty
High-end curtain wall and facade systems; 1,000+ landmark projects; 30+ countries
Market
Global - landmark commercial, hospitality, institutional, and residential high-rise
Brand at a Glance
- Global leader in high-end curtain wall and aluminium facade systems with 1,000+ landmark project completions
- Projects include Shanghai Tower, Guangzhou CTF Finance Centre, and major landmarks across 30+ countries
- Full-service facade contractor: design, engineering, fabrication, and installation in one organisation
Product Range
- Unitised curtain wall systems for high-rise commercial and residential towers
- Structural glazing facades with silicone bonded glass panels
- Point-fixed glass facade systems for architectural feature elevations
- Aluminium composite panel (ACP) facade cladding systems
- Specialty facade systems including BIPV (building-integrated photovoltaics) and double-skin facades
Why This System
Jangho facades are bespoke engineering projects - each landmark building has a facade system designed specifically for that project's geometry, structural loads, and performance requirements. This means there is no standard Jangho window to clean: there is a specific facade system with specific drainage routes, specific panel joint types, specific structural silicone exposures, and specific access equipment requirements designed and documented for that building. Cleaning a Jangho facade without understanding the system design and approved access methodology is a risk - both to the facade and to the cleaner.
High-performance curtain wall glass in Jangho systems is typically specified to the highest available standards: triple Low-E coatings, solar control glass, high-visible-light-transmission coatings. These coatings are applied to inner surfaces of insulated units and are not accessible for cleaning, but they make correct outer surface cleaning non-negotiable. Any surface scratching on the outer glass face of a triple-coated unit reduces optical clarity and scatters light through the coating stack. Structural silicone joints at panel perimeters must not be cleaned with solvent-based products - silicone solvents cause silicone shrinkage and joint failure.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Step 2 of 2: The Orloffs Protocol
The Orloffs Protocol
Since 1999 I've cleaned hundreds, if not thousands, of different window brands and systems. The physics of clean glass don't change from one brand to the next. Follow the steps below and you'll clean your Jangho Facade windows to a professional standard β guaranteed.
Pro Tools
My daily tool list. This is what I carry to every job.
Follow these steps in order. Each one builds on the last. This is the same sequence I use on every Jangho Facade installation.
- 1
Preparation -- before any water touches the glass
Fill the bucket with at least 10 litres of water. Add soap for cleaning power -- enough to cut through environmental deposits, not so much you are fighting foam.
Before touching the glass, brush down the surface to remove loose dust, spiderwebs, and debris. Any grit left on the glass during the wash phase risks scratching during agitation.
Check the aluminium frame condition before you start. Confirm which cleaning product is safe for that surface before opening any bottle.
Cover anything below the windows that cannot be moved.
- 2
Agitation -- apply and work the solution
Dip the microfiber T-bar completely into the soap water, both sides. Remove excess water with your hand so it does not drip. Apply the solution across the entire glass surface with overlapping passes.
The goal is to fully dissolve and release every deposit from the glass surface. Anything not released during agitation gets transported across the glass by the squeegee as a smear.
For stubborn spots -- insect marks, salt residue, environmental deposits -- re-apply soap water and allow it to soak for a full minute before agitating again. Use more soap water, not more pressure.
For panels above arm reach: attach the T-bar to an extension pole. Work in sections -- top first, then middle, then bottom -- keeping each section wet until you squeegee it.
Rinse the T-bar cover regularly during the job. A dirty applicator causes microscopic scratches that accumulate over time.
- 3
Detail the frame edge before squeegeeing
Use your 100% cotton towelling rag, finger pressed into the fabric, to work into every junction and remove pooled soap water before the squeegee pass.
This prevents drips running down onto already-cleaned areas during squeegeeing and keeps soap water out of drainage channels.
On Jangho Facade aluminium frames, pay particular attention to the bottom edge where glass meets the frame sill -- water pooled here runs into drainage openings and leaves residue over time.
- 4
The squeegee
Tilt the squeegee at a slight angle so soap water spills from one side of the channel only -- not both. If the rubber is jumping or squeaking, either the rubber is not lubricated enough or the glass surface has warmed.
Cutting in: start with the rubber blade making first contact on a dry edge of the glass.
Side to side: horizontal passes across the panel. Works well on wide sections. Top to bottom: vertical passes down the panel. Works well on tall narrow sections.
The J tune: one smooth unbroken motion top to bottom, wrist rotating at each end to reverse without lifting the rubber. The most efficient method on larger panels -- but it requires training before applying it to premium glass.
Wipe the rubber dry after every pass. Overlap each stroke by 2-3 cm.
- 5
Final edge detailing
After squeegeeing, there is always a residual line of water along the bottom edge and at the panel sides. Take a dry cotton rag, fold to a clean corner, and detail these edges in one smooth pass.
On Jangho Facade frames, the bottom edge where glass meets the sill requires the most careful attention. Water left here runs into drainage and leaves residue that affects the next clean.
Rotate the rag to a clean section after every pass. If the rag picks up grit at any point, replace it immediately.
- 6
Frame wipe and hardware check
On Jangho Facade powder-coated aluminium frames: use pH-neutral cleaner only, never abrasive pads or steel wool. Dry immediately after wiping.
Check that all drainage openings are clear and unobstructed. Water must be able to flow freely -- a blocked channel leads to accumulation that affects seal performance over time.
Operate every opening window through its full range. Stiff handles or resistance at locking points indicate hardware that needs lubrication. Flag it to the owner rather than forcing it.
Pro Tips
- Jangho facade systems on landmark buildings require facade maintenance plans - request this documentation from the building management team before starting a new contract. The plan documents access equipment, approved cleaning products, and no-go zones.
- Structural silicone joints on Jangho unitised systems must be inspected during each cleaning visit - cleaning access presents the best opportunity to identify joint degradation early. Note and photograph any joint cracking or silicone shrinkage.
- On Jangho double-skin facade systems, the inner skin and cavity require separate specialist cleaning protocols - do not apply standard single-skin cleaning approaches to double-skin elevations without understanding the specific drainage and ventilation design.
What NOT To Do
- Do not use solvent-based cleaners on or near structural silicone joints on any Jangho facade panel.
- Do not use abrasive materials on high-performance coated curtain wall glass.
- Do not access Jangho facades via non-approved methods - engineered access systems are specified for structural and safety reasons, not convenience.
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Typically quarterly on high-profile landmark facades in line with building maintenance plans. Frequency may increase for facades in high-pollution urban environments (Beijing, Shanghai, Middle East) or coastal salt-air locations. Frequency is specified in the building facade maintenance plan - follow that, not a generic schedule.
Frequently Asked Questions
Field Notes
βJangho facades represent the top tier of complexity in professional facade cleaning. The skills required - rope access, BMU operation, high-performance glass care, structural silicone awareness, and complex drainage system understanding - go well beyond standard window cleaning. If you are being asked to clean a Jangho-designed curtain wall facade without formal rope access qualifications and a reviewed facade maintenance plan, decline the work and refer to a specialist facade contractor.β
Justin Orloff
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