Terminology & compliance note. In the strict Singapore sense, “facade inspection” refers to Periodic Facade Inspection (PFI) — the statutory regime under the Building Control (Periodic Inspection of Buildings and Building Facades) Regulations 2021, administered by BCA. A statutory PFI must be planned, directed and certified by a registered Competent Person (CP) appointed by the building owner. Where this article uses “facade inspection” in a general sense, the statutory equivalent is PFI; ad-hoc surveys outside the regulations are properly described as facade condition checks or PFI support.
Our role. Facade Inspection Singapore (operated by Ezzogenics) is a Singapore work-at-height contractor. We provide close-range access support, rope-access / height-access support, visual and photographic documentation, tapping checks, defect recording, condition checks and repair / rectification support. We do not act as the appointed CP, nor do we independently certify PFI compliance or replace the CP, consultant or QP. Where statutory inspection is involved, our contractor support is coordinated under the CP / consultant / QP’s direction.
A modern Singapore office tower can have hundreds of square metres of high-performance glazing on a single elevation.
Every panel is a quiet engineering compromise between visible light, solar heat gain, glare, U-factor and energy cost.
When a panel fails, it may not fall off dramatically. Instead, a desiccated low-E coating, fogged insulating glass unit or hardened EPDM gasket can quietly increase running cost, reduce tenant comfort and get worse over time.
A serious window inspection Singapore process catches these defects while they are still cheaper to remedy.
Why Window Inspection Matters in Singapore
Window inspection is important because glazing performance changes with age, exposure and maintenance condition.
Singapore’s climate exposes windows and glazing systems to:
- High solar radiation
- Sustained humidity
- Intense UV
- Cyclic thermal stress
- Salt aerosol on coastal-facing elevations
A high-performance glazing specification chosen at design stage can drift from its original performance as gaskets age, edge seals fail and coatings degrade.
The Performance Language of Glazing
Every high-performance window can be described using a few key performance metrics.
Visible Transmittance
Visible Transmittance, or VT, is the fraction of visible light transmitted through the glass.
Solar Heat Gain Coefficient
Solar Heat Gain Coefficient, or SHGC, is the fraction of solar radiation transmitted as heat.
U-Factor
U-factor measures heat transmission rate. Lower U-factor means better insulation.
Reflectance
Reflectance is the fraction of light reflected at the glass surface.
Absorptance
Absorptance is the fraction of solar energy absorbed and converted to heat in the glass.
For inspection, the important point is that a panel’s behaviour depends on what is on, in and between the glass. Most of those layers degrade in different ways.
What Is Inside a High-Performance Window?
A modern glazed unit may combine several glass treatments, assemblies and advanced technologies.
Low-E Coatings
Low-E coatings are engineered to reflect far-infrared and near-infrared radiation while transmitting visible light.
These coatings underpin many modern high-performance glazing systems.
Reflective Coatings
Reflective coatings provide broader-spectrum mirroring where solar control is the priority.
Tints
Bronze, grey or blue-green additives increase absorptance to lower SHGC and control glare.
Laminates
Laminates use interlayer films for safety, acoustic and security performance.
Surface Treatments and Applied Films
Surface treatments and applied films may include anti-reflective films, retrofit low-E films or anti-glare films.
Window Assembly Components
High-performance windows may include multiple assembly components that a facade inspector needs to understand.
Multiple Panes
Double or triple glazing can improve insulation and acoustic performance.
Gas Fills
Argon or krypton gas fills between panes help reduce U-factor.
Spacers
Warm-edge or stainless-steel spacers separate the panes. The spacer area is also where edge-seal failure typically starts.
Frames
Frames may be aluminium, thermally broken aluminium, steel, uPVC or composite.
Air Leakage Paths
Air leakage can occur at the perimeter seal of operable units or at the frame-to-wall interface.
Advanced Window Technologies
Some modern glazing systems include advanced technologies that add new inspection requirements.
Dynamic Windows
Dynamic windows may use electrochromic or thermochromic glass.
Building-Integrated Photovoltaics
BIPV glazing integrates photovoltaic technology into the building facade. Wall-integrated PV is now part of the Fire Code 2023 facade discussion. SCDF states that Fire Code 2023 is a key reference for fire-safe building design in Singapore.
Automated Shading
Automated shading may include internal or inter-pane blinds responding to solar angle.
Each technology adds a failure mode the inspector should understand.
What a Window Inspection Actually Checks
A proper window inspection blends visual, tactile, operational and instrumented techniques.
Visual and Tactile Checks
The inspector checks:
- Glass chips
- Scratches
- Scoring
- Edge damage at corners
- Signs of impact
- Patchy reflectance
- Ghosting
- Visible halos
- Low-E coating degradation
- IGU fogging
- Condensation between panes
- Frame corrosion
- Paint failure
- Deformation
- Dropped sashes
- Gasket compression
- Sealant integrity
IGU fogging or condensation between panes may indicate desiccant exhaustion or breach of the edge seal.
Gasket and Sealant Checks
The inspector checks whether EPDM, silicone or neoprene gaskets have lost compression or sit proud.
Sealant defects may include:
- Cohesive failure
- Adhesion failure
- Hardening
- Chalking
- Cracking
- Incorrect width-to-depth ratio
Operational Checks
For openable units, the inspection should include:
- Hinge corrosion
- Friction stay condition
- Restrictor function
- Latch function
- Lock function
- Loose or dangling sash condition
Restrictor function is especially important for residential units where fall-from-height is a recognised hazard.
Instrumented Checks
Instrumented checks may include:
- Infrared thermography
- Moisture meter checks
- Damp surveys
- Smoke pencil checks
- Anemometer checks
Infrared thermography helps map cold spots that may indicate insulation displacement, gas-fill leakage or thermal bridges at frames.
Moisture meter and damp surveys help confirm whether visible staining is condensation or external water ingress.
Common Defects and Red Flags During Glazing Inspection
A facade inspector should treat the following as red flags:
IGU and Glass Defects
- IGU edge-seal failure
- Condensation between panes
- Spacer tarnishing at the glass edge
- Patchy reflectance
- Rainbow patterning
- Low-E coating delamination
- Applied-film failure
- Cracked or loose window panels
Sealant and Gasket Defects
- Hardened perimeter sealant
- Chalking or cracked sealant
- EPDM or silicone gaskets that no longer compress evenly
- Micro-gaps for air and water
- Sealant failure across multiple panels of the same elevation
Openable Window Defects
- Dangling sashes
- Broken hinges
- Missing restrictors
- Removed restrictors
- Loose locks or latches
- Corroded hardware
Singapore Context: Why Glazing Performance Matters
Singapore’s climate makes glazing performance especially important.
High solar radiation, humidity, UV exposure and thermal cycling all affect glazing systems. Over time, gaskets can age, edge seals can breach and coatings can degrade.
For residential towers, falling-glass risk is also a separate concern. Cracked or loose vision panels, dangling windows, missing capping and corroded openable hardware may fall within facade inspection scope.
Singapore Regulatory Context for Window Inspection
Window inspection sits within three frames.
BCA Periodic Facade Inspection
BCA’s PFI process requires building owners to appoint a Competent Person after receiving a PFI notice, and owners must ensure defects detected by the CP are promptly repaired.
Glazing, glass facades, curtain walls and glass parapets may form part of the wider facade inspection scope.
SCDF Fire Code 2023
The SCDF Fire Code 2023 is relevant where fire-rated glazing, fire shutters, facade interfaces or wall-integrated PV in glazed assemblies are involved.
Workplace Safety and Health
The Workplace Safety and Health framework applies to high-rise glazing inspections that require rope access, gondola, BMU or MEWP access.
What Building Owners Should Do Next
If your building has glazing more than 10 years old, three pre-inspection items will improve the value of the survey.
Pull the Original Glazing Specification
This should include low-E type, gas fill, spacer system, sealant grade and glass make-up.
Pull Maintenance Records
Gather records for any sealant replacement, gasket replacement, glass replacement or leakage repair programme.
Identify Worst-Exposure Elevations
Identify the elevations most exposed to sun, rain, salt aerosol and thermal cycling. In Singapore, west and south elevations often deserve closer attention.
From there, a Competent Person can size the inspection scope according to where risk and remediation cost are most concentrated.
Conclusion
Window inspection in Singapore is essential for buildings with high-performance glazing, IGUs, curtain walls, glass facades and openable windows.
A proper inspection checks glass condition, coatings, edge seals, gaskets, sealants, frames, hardware, air leakage and thermal performance.
For building owners and managers, early inspection can reduce energy drift, tenant complaints, water ingress and safety risks linked to loose or damaged glazing.
FAQ About Window Inspection Singapore
What is window inspection Singapore?
Window inspection Singapore refers to the inspection of glazing systems, glass panels, IGUs, frames, gaskets, sealants and openable window hardware in buildings.
Why is window inspection important?
It helps detect glazing defects, air leakage, water ingress, IGU failure, coating degradation, loose panels and hardware issues before they become costly or unsafe.
What is IGU fogging?
IGU fogging is condensation or moisture between panes of an insulating glass unit. It usually indicates edge-seal failure or desiccant exhaustion.
What does a facade inspector check on windows?
A facade inspector checks glass condition, low-E coating condition, gaskets, sealants, frames, hinges, restrictors, latches, locks, condensation, air leakage and water staining.
Are windows included in facade inspection?
Yes, windows, glazing, curtain walls, glass facades and glass parapets may be part of facade inspection where they form part of the building exterior.
What are common window defects in Singapore buildings?
Common defects include IGU fogging, gasket compression loss, hardened sealant, frame corrosion, broken hinges, missing restrictors, cracked panels and condensation staining.
What should owners prepare before window inspection?
Owners should prepare glazing specifications, maintenance records, past leakage reports, replacement records, facade drawings and access information.
This article is educational background on façade inspection regimes in Singapore. In the strict statutory sense, "façade inspection" means Periodic Façade Inspection (PFI) — the legal requirement under BCA's Building Control (Periodic Inspection of Buildings and Building Façades) Regulations 2021, which must be planned, directed and certified by an appointed Competent Person (CP). Building owners should appoint the required CP under BCA's PFI regime. Facade Inspection Singapore (operated by Ezzogenics) provides contractor-level support — close-range access, rope/height-access, visual and photographic documentation, tapping checks, defect recording, and rectification works — under the CP, consultant or QP's direction where statutory inspection is involved. We do not independently certify statutory PFI compliance or replace the appointed CP unless that role is separately and explicitly agreed.