UV + heat
Strong solar exposure can increase surface temperature and accelerate colour or gloss change. Repeated heating and cooling also create movement between panels, supports and sealants.
Climate-responsive ACP selection
How to Select ACP for Different Climates and Geographical Conditions
There is no single ACP specification that is automatically right for every location. At Aludecor, we select ACP for different climates by looking at the actual environmental exposure UV, heat, humidity, rain, salt, wind, pollution, dust and maintenance access—before we narrow the coating, aluminium skins, alloy, core, panel size, joints, fixings and substructure. A coastal high-rise and an inland low-rise can sit within the same broad climate category yet need very different detailing. Our approach to ACP for different climates therefore starts with the site and treats the panel as one part of the complete façade system.
For hot-dry projects, prioritise UV durability and thermal-movement detailing. For warm-humid, monsoon and high-rainfall projects, prioritise bond stability, drainage and moisture management. For coastal sites, add corrosion-conscious fasteners, edge protection, dissimilar-metal isolation and more frequent freshwater cleaning. For cold or high-altitude projects, account for contraction, freeze-thaw, snow, strong UV and wind. In every case, final ACP selection should also reflect building height, orientation, panel geometry, fire requirements and the engineered fixing system.
Start here
Quick selection summary
When we evaluate ACP sheet for different climates, six questions usually reveal more than a generic “exterior grade” label.
What is the broad climate?
Hot-dry, warm-humid, temperate, composite or cold gives us a starting point.
What exposure overlays apply?
Coastal salt, industrial pollutants, heavy rainfall, altitude, dust and high wind can override the broad climate.
Which elevation is most exposed?
Solar orientation, shading, rain washing and sheltered recesses change heat, wetting and deposit build-up.
What is the complete panel build-up?
Coating, skins, alloy, core, dimensions and fabrication should be compared together, not one at a time.
How is the façade engineered?
Wind, panel modules, joints, returns, fasteners, substructure, drainage and sealants are system decisions.
Can it be inspected and cleaned?
Maintenance access matters most where salt, soot, dust or biological deposits are likely to accumulate.
The physical stresses
Why climate and geography matter for ACP selection
Selecting ACP for different climates means understanding which part of the façade is being stressed. Sunlight changes the coating and panel temperature; rain and humidity test joints, sealants and drainage; salt and pollutants challenge cut edges, fasteners and interfaces; wind acts on the panel, returns, brackets and substructure.
Moisture + rainfall
Rain, condensation and long wet periods make drainage, cavity design, bond stability, flashings and compatible sealing details especially important.
Salt + pollution
Salt, soot and chemical deposits can accumulate at edges, fasteners, ledges and sheltered areas. Coating resistance, compatible metals and cleanability matter together.
Wind + geometry
Pressure and suction are structural conditions. Panel size, skin, returns, supports, fixings and substructure need project-specific engineering.
Cold + freeze-thaw
Cold causes contraction and can expose trapped moisture to freezing. Drainage, joint movement, sealant behaviour, wind and snow need review.
Dust + maintenance
Dust and sand can lodge in joints or abrade finishes if cleaned aggressively. Texture, ledges, cleaning access and maintenance methods affect long-term appearance.
Weather resistance is not the same as waterproofing. ACP is the visible cladding layer. Water control depends on the complete wall build-up, including joints, flashings, membranes or weather barriers where used, cavity drainage, penetrations and workmanship.
Climate-by-climate recommendations
Choose your climate or exposure condition
Select the condition closest to your project to see the specification priorities we would review first. These are starting points rather than automatic product prescriptions; height, orientation, panel module, coastline distance, pollution, fire requirements and maintenance access can still change the final selection.
Hot-dry / high UV
Heat, UV, dust and large day-night movement
Our priority
Coating durability + movement detailing, not coating alone.
What we recommend checking
- Use an exterior coating system matched to UV exposure, colour, gloss and intended service conditions.
- Review thermal-movement allowance in joints and fixings.
- Evaluate dark, saturated and metallic shades carefully on highly exposed elevations.
- Engineer panel size, skin, returns and support spacing for the project.
- Plan non-abrasive dust removal.
Warm-humid / tropical / monsoon
Humidity, prolonged wetting, driven rain and condensation
Our priority
Safe water paths + compatible interfaces.
What we recommend checking
- Prioritise stable bonding and an exterior coating suitable for humidity, rain and UV.
- Provide drained and ventilated joints or cavities where the façade system requires them.
- Detail windows, parapets, signage and service penetrations as water-management interfaces.
- Use compatible sealants, backer rods and primers.
- Avoid trapped water around brackets and ledges.
Coastal / marine
Salt deposition, humidity and corrosion-sensitive interfaces
Our priority
Treat the face coating, edges, fasteners and hidden interfaces as one corrosion-control strategy.
What we recommend checking
- Use a validated exterior coating and primer system for the actual coastal severity.
- Specify compatible corrosion-resistant fasteners and brackets.
- Isolate dissimilar metals where required and protect cut edges and penetrations.
- Avoid details that retain saline water.
- Plan more frequent freshwater washing on sheltered or non-rain-washed area
High rainfall
Repeated wetting, wind-driven rain and drainage overload
Our priority
Drainage continuity + robust transition details.
What we recommend checking
- Use drained façade principles appropriate to the selected system.
- Provide flashings, drip edges and uninterrupted drainage paths at transitions.
- Keep substrates, insulation and support components protected from trapped water.
- Review low-level zones where flood or impact exposure is foreseeable.
- Inspect drainage routes before and after the wet season.
Composite / mixed-variable
Summer heat, monsoon moisture, winter contraction and pollution
Our priority
A balanced specification that works across seasons.
What we recommend checking
- Balance UV, humidity, pollution and colour-retention requirements.
- Design movement joints for the full annual temperature range.
- Verify sealant movement and adhesion to the actual coated surface.
- Keep openings, parapets and transitions drained.
- Treat exposed or tall elevations as wind-engineering conditions as well.
Cold / high altitude
Contraction, freeze-thaw, snow, strong UV and wind
Our priority
Drainage + movement + wind/snow engineering rather than thickness alone.
What we recommend checking
- Review low-temperature coating and sealant flexibility.
- Provide movement allowance for contraction and later warming.
- Prevent water entrapment at joints, flashings and horizontal ledges.
- Engineer the façade for local wind and snow where applicable.
- Use mock-ups for complex, curved or unusually large panels.
Industrial / polluted
Soot, chemicals, traffic deposits and aggressive cleaning risk
Our priority
Pollutant-specific compatibility + maintainability.
What we recommend checking
- Identify nearby pollutant sources before choosing the coating and cleaning method.
- Verify resistance to relevant chemicals or cleaners instead of relying only on generic corrosion data.
- Carry out a discreet cleaning trial before approving aggressive methods.
- Design access for ledges, fins, recesses and sheltered zones.
- Inspect interfaces where pollutants combine with moisture.
Dusty / arid / sand-bearing
Abrasive deposits, joint contamination and uneven soiling
Our priority
Cleanable geometry + abrasion-conscious maintenance.
What we recommend checking
- Avoid unnecessary horizontal dust shelves.
- Select texture and gloss with realistic cleaning expectations.
- Use non-abrasive cleaning with adequate water; avoid harsh dry scrubbing.
- Inspect sealants and moving joints for embedded grit.
- Account for wind-blown sand in exposed zones.
Cyclone-prone / high wind
Pressure, suction, driven rain, vibration and local corner loads
Our priority
Complete-system wind design + verification.
What we recommend checking
- Treat wind as an engineering condition, not a coating property.
- Size panel modules, skins, returns, stiffeners, supports, fasteners and substructure from calculated loads.
- Check pull-out, pull-through and edge details where required.
- Validate the complete assembly when height, geometry or risk warrants it.
- Detail joints and flashings for wind-driven rain.
Orientation matters
Do north, south, east and west elevations need the same ACP?
Not always. Orientation can alter solar loading, rain washing, drying time and deposit accumulation. We consider it as an exposure multiplier when selecting ACP for different climates.
NNorth-facing
Often receives less direct solar loading, but shaded or sheltered areas can remain damp or hold deposits for longer. Check local shading and rain washing.
EEast-facing
Morning solar exposure can be significant. Review local shading, colour, glazing interfaces and rain direction rather than assuming low exposure.
SSouth-facing
Can receive sustained solar exposure depending on latitude, season and shading. Review coating, colour and movement alongside project geometry.
WWest-facing
Often sees strong afternoon solar loading and high surface temperatures. Give extra attention to colour, coating durability and movement detailing.
Orientation guidance is indicative. Nearby buildings, overhangs, vegetation, terrain, reflected heat and local weather can change actual exposure.
Climate selection matrix
Match environmental risks to ACP specification priorities
This information converts the main environmental risks into practical specification questions. It is a starting framework for ACP for different climates, not a substitute for project engineering or the latest product documentation.
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| Climate / condition | Main challenge | What happens to the façade | ACP characteristics to prioritise | Coating / finish | Installation / detailing | Maintenance | Our recommendation |
|---|---|---|---|---|---|---|---|
| Hot-dry / high UV | UV, heat, dust, thermal cycling | Colour/gloss change, movement stress, dust build-up | Exterior-grade full specification; skin/alloy/panel geometry aligned to loads | Validated SDP, PVDF or FEVE system according to exposure | Movement-friendly joints and fixings; engineered supports | Non-abrasive dust cleaning | Balance coating durability with thermal-movement design. |
| Warm-humid / tropical | Humidity, wetting, condensation | Moisture remains longer at joints and cavities | Bond stability and exterior suitability | System suited to humidity, UV and rain | Drainage, ventilation, compatible sealants and flashings | Inspect wet/sheltered interfaces | Make water management part of the façade design. |
| Coastal / marine | Salt + humidity | Corrosion risk increases at edges, scratches and metal interfaces | Complete exterior system with corrosion-conscious components | High-durability system validated for project severity | Compatible fasteners; isolate dissimilar metals; protect edges | Freshwater washing based on actual salt deposition | Specify face, edges, fasteners and brackets together. |
| Composite / mixed | Heat + monsoon + winter + pollution | Large annual movement plus deposits | Balanced complete specification | Match UV/humidity/pollution exposure | Full-range movement joints and drainage | Seasonal inspection and cleaning | Avoid optimising for only one season. |
| Cold / high altitude | Contraction, freeze-thaw, snow, UV, wind | Sealant stress, trapped water freezing, local loads | Low-temperature compatible materials and engineered panel system | Validated exterior system with suitable flexibility | Drainage, movement allowance, wind/snow engineering | Pre/post winter inspection | Prevent trapped water and design for local loads. |
| Industrial / polluted | Soot, particulates, chemicals | Staining, coating attack, difficult cleaning | Chemical/cleaning compatibility | Primer/topcoat selected for actual contaminants | Accessible recesses and ledges | Pollutant-specific cleaning plan | Identify the pollutant before approving the finish. |
| Dusty / sand-bearing | Abrasive dust and sand | Uneven soiling and possible cleaning abrasion | Cleanable surface and durable coating | Texture/gloss chosen with cleaning in mind | Avoid dust shelves; keep joints serviceable | Wet, non-abrasive methods | Design out deposit traps where possible. |
| High rainfall | Repeated wetting and driven rain | Drainage overload at transitions and openings | Exterior-grade panel plus robust wall weather-management strategy | Appropriate for rain, humidity and local UV | Flashings, drips, drainage paths, protected interfaces | Pre/post wet-season inspection | Never rely on the panel face as the only water-control layer. |
| Cyclonic / high wind | Pressure, suction, vibration, driven rain | High forces at corners, edges, brackets and fasteners | Engineered skin, panel size and support system | Choose coating separately from structural wind design | Calculated fixings, returns, supports and substructure | Inspect fasteners, joints and edge zones | Use project-specific wind calculations and assembly verification. |
Exposure risk at a glance
Which climate factors need the most attention?
These ratings are relative planning signals only. Actual exposure can move up or down with coastline distance, terrain, height, orientation, shelter, surrounding industry and local weather.
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| Environment | UV | Heat / thermal cycling | Moisture / humidity | Salinity / corrosion | Wind | Pollution / deposits | Overall review priority |
|---|---|---|---|---|---|---|---|
| Hot-dry | Very High | Very High | Low | Low | Moderate | Moderate | High |
| Warm-humid / monsoon | High | High | Very High | Moderate | Moderate | Moderate | Very High |
| Coastal / saline | High | High | Very High | Very High | High | Moderate | Very High |
| Composite urban | High | Very High | High | Low | Moderate | High | High |
| Cold / high altitude | Very High | Very High | Moderate | Low | High | Low | Very High |
| Industrial / polluted | Moderate | Moderate | Moderate | Moderate | Moderate | Very High | High |
| Dusty / arid | Very High | Very High | Low | Low | High | High | High |
| Cyclonic / exposed | Moderate | Moderate | High | Moderate | Very High | Low | Very High |
“Very High” does not mean a location is unsuitable for ACP sheets. It means that the factor deserves a stronger project-specific review.
Project specification checklist
What should change with the project condition?
Use this checklist to keep ACP for different climates focused on the complete façade specification rather than a single product label.
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| Specification item | Hot-dry / dusty | Warm-humid / high rainfall | Coastal / saline | Cold / high altitude | Industrial / high-wind |
|---|---|---|---|---|---|
| Panel thickness | Select with panel size, skin, supports and calculated loads; do not treat nominal thickness as a universal climate rule. | ||||
| Aluminium skin | Check geometry and thermal movement | Check complete exterior build-up | Review alloy/skin with corrosion exposure and engineering | Check movement and load demands | Size from structural demand and exposure |
| Coating type | Strong UV/weathering focus | Humidity/rain/UV balance | High-durability, project-validated system | Weathering + low-temperature flexibility | Chemical resistance or exposure-appropriate system |
| Coating durability | Colour, gloss, chalking and adhesion evidence | Humidity and adhesion evidence | Corrosion + humidity + edge behaviour evidence | Thermal cycling + adhesion evidence | Chemical or pollutant compatibility; wind is separate |
| Core / product category | Choose from application and fire requirements; climate does not replace fire-performance or regulatory review. | ||||
| Colour / finish | Consider heat absorption and dust visibility | Consider staining and biological deposits | Consider salt/deposit visibility and cleaning | Consider UV and maintenance access | Consider soot, chemical staining and cleanability |
| Gloss | Review UV and visual weathering expectations | Review cleaning and deposit visibility | Review coating-system limitations | Review coating flexibility and appearance | Review cleanability and chemical exposure |
| Fabrication | Movement-friendly detailing | Protect interfaces and water paths | Protect edges and penetrations | Avoid water traps; consider cold handling | Validate complex geometry under wind or pollutants |
| Fixing system | Permit controlled movement | Drain water safely | Use compatible corrosion-resistant components | Allow contraction and subsequent warming | Calculate for wind where applicable |
| Joints | Full thermal movement | Drainage and sealant compatibility | Drainage + corrosion-conscious interfaces | Low-temperature movement | Pressure/wind movement or pollutant access |
| Sealants | Movement + UV compatibility | Adhesion + moisture exposure | Coating compatibility + saline environment | Low-temperature compatibility | Chemical compatibility where relevant |
| Substructure | Thermal and wind review | Keep hidden components dry/drained | Corrosion-conscious material interfaces | Wind/snow and thermal review | Structural wind + pollutant exposure |
| Drainage | Keep dust from blocking paths | High priority | High priority; avoid saline water traps | Prevent freeze-prone water pockets | High priority under wind-driven rain where relevant |
| Ventilation | As required by façade design | Useful in drained/ventilated systems | Avoid stagnant saline moisture | Coordinate with condensation strategy | As required by system and exposure |
| Cleaning access | Dust removal | Biological/atmospheric deposits | Freshwater washing | Difficult-access planning | Soot/chemical cleaning or exposed-height access |
| Maintenance frequency | Based on dust deposition | Pre/post wet season useful | More frequent where salt deposits accumulate | Before/after winter useful | Based on pollutant and structural inspection needs |
Coating and finish guide
Choose exterior coating and finish by exposure
Coating chemistry matters, but the resin name is only one part of the system. We also evaluate pretreatment, primer, pigment, film build, curing, fabrication and verified product performance.
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| Coating types | Typical application direction | UV consideration | Coastal consideration | High-rainfall consideration | Maintenance implications | Limitations / checks | Best-use scenario |
|---|---|---|---|---|---|---|---|
| Polyester | Interior and controlled/light-duty uses unless a specific exterior product is validated | Do not assume premium exterior UV durability | Not a default marine recommendation | Exterior use requires product-specific validation | Keep cleaning compatible with finish | Confirm intended application before exterior use | Interior decorative applications |
| SDP / high-durability polyester | Selected exterior applications where the specific product is approved | Designed for stronger weathering performance than standard polyester | Assess actual salt severity and product warranty conditions | Can suit selected exterior conditions when system is validated | Regular cleaning based on deposits | Performance varies by formulation, pigment, shade and exposure | Exterior projects with defined weathering requirements |
| PVDF | Demanding exterior architectural applications where the complete system is validated | Strong focus on long-term weathering | Often evaluated for demanding coastal work, subject to complete system | Suitable direction where UV/rain exposure is significant | Follow approved cleaning and warranty conditions | Verify resin system, primer, colour limitations, film build and fabrication | High-UV, long-life or severe exterior exposure |
| FEVE | High-performance exterior and selected bright/high-gloss or special-effect finishes where validated | Strong weathering potential when part of a qualified system | Can be evaluated for demanding exposure | Suitable direction where the complete system supports it | Follow product-specific care requirements | Do not assume universal superiority over PVDF; compare full system and project fit | Exterior projects needing durable, expressive finishes |
A better coating question: do not ask only “PVDF or FEVE?” Ask what the complete coating system is, what exposure it is approved for, how colour and gloss affect performance, what fabrication limits apply, and what maintenance and warranty conditions govern the exact project.
India climate examples
Turn project location into the right specification questions
City names are only shorthand. We use them to identify a likely starting exposure, then verify the actual site before choosing ACP for different climates.
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| Locations | Broad starting condition | Likely added exposure | Specification priorities | Questions before finalising ACP |
|---|---|---|---|---|
| Ahmedabad, Jodhpur, Jaisalmer, Kota | Hot-dry | High UV, heat, dust and large thermal movement | Weathering, movement joints, dust-conscious details and cleanability | Which elevations are darkest or most exposed? Are joints free to move? How will dust be removed? |
| Mumbai, Chennai, Kochi, Mangalore, Kolkata, Visakhapatnam | Warm-humid; many sites also coastal | Humidity, monsoon rain, salt, corrosion and biological deposits | Exterior coating system, drainage, coastal interfaces, compatible fasteners, cleaning | How close and exposed is the site to marine air? Which surfaces are sheltered from rain washing? |
| Delhi, Lucknow, Bhopal, Nagpur, Hyderabad | Composite | Summer heat, monsoon moisture, winter movement and pollution | Balanced UV/humidity/pollution resistance and full-range movement | What is the annual exposure range? Which elevations see heavy traffic deposits or strong afternoon sun? |
| Bengaluru | Temperate starting point | Local rain, UV, pollution and elevation effects | Application-appropriate coating plus project-specific wind/water detailing | Is the site on an exposed ridge, shaded microclimate or high-traffic corridor? |
| Leh, Manali, Srinagar, Kullu | Cold / high altitude | Low temperature, freeze-thaw, snow, high UV and wind | Movement, drainage, low-temperature compatibility and wind/snow engineering | Where can water freeze? What are local wind/snow conditions? Can the façade be inspected easily? |
These are illustrative starting points, not city-wise product prescriptions. Coastal distance, altitude, local pollution, terrain, building height, orientation and microclimate can materially change the final requirement.
Selection shortcuts to avoid
What not to use as the only basis for ACP selection
Most expensive façade mistakes start when one visible or commercial attribute is treated as the entire specification.
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| Do not select only on | Why it can mislead | Evaluate instead |
|---|---|---|
| Colour | The same shade can exist on different coatings, skins, cores and grades. | Colour + coating system + exposure + batch/direction + full panel specification. |
| Lowest upfront price | Different quotations may include different skins, coatings, cores, sizes, accessories and scope. | Normalise the complete specification and project scope first. |
| Nominal panel thickness | Overall thickness does not define skin, alloy, rigidity, wind design or fire category. | Skin + alloy + core + panel module + support + calculated loads. |
| Brand name | A strong brand still offers different products for different applications. | Exact grade, technical data, intended application and project conditions. |
| One generic “exterior grade” | Coastal, high-UV, polluted and high-wind sites create different stresses. | Climate + exposure overlays + orientation + height + maintenance. |
| Appearance sample | A small sample proves colour/texture, not long-term weathering or system design. | Approved sample + technical data + relevant test evidence + mock-up where needed. |
| Indoor performance assumptions | Interior conditions do not reproduce UV, rain, salt, thermal cycling or wind. | Exterior-specific product and system evidence. |
| A neighbouring building | It may differ in height, orientation, age, support design, maintenance and microclimate. | Your project’s actual exposure and engineering inputs. |
Evidence before approval
Which tests and technical evidence matter?
No single test predicts the service life of a façade. For ACP for different climates, we match evidence to the dominant risk and compare test conditions, duration, specimen preparation and acceptance criteria, not just the test name.
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| Evidence | What it helps evaluate | Interpretation caution |
|---|---|---|
| Accelerated UV / condensation weathering | Comparative coating response to repeated UV and moisture cycles | Compare like-for-like cycles and durations; do not translate hours directly into outdoor years. |
| Natural outdoor weathering | Real-world colour, gloss and surface behaviour over time | Exposure location and duration matter. |
| Salt spray / cyclic corrosion | Comparative corrosion performance of coated systems and edge defects | Test hours are not a universal service-life prediction. |
| Humidity / condensation | Blistering, corrosion and adhesion under sustained moisture | Check the specific method and acceptance criteria. |
| Water-related bond tests | Adhesion or bond response under defined moisture stress | Look at retention and failure mode, not a test name alone. |
| T-bend / coating flexibility | Coating behaviour during bending and forming | Relevant to the actual fabrication route and sheet specification. |
| Peel-strength / bond integrity | Bond between aluminium skins and core | Project documents should define applicable criteria. |
| Freeze-thaw / thermal cycling | Response to repeated temperature change and freezing moisture | Most relevant where cold and trapped moisture can coincide. |
| Chemical resistance | Response to specified industrial contaminants or cleaners | Test chemicals should reflect the actual project exposure. |
| Wind calculations / fixing verification | Panel, fastener, bracket and substructure adequacy | Use the project’s geometry and calculated pressures; coating tests do not prove wind performance. |
Project-specific ACP guidance
Tell us the site conditions. We’ll help narrow the right ACP specification.
Climate is only the starting point. For a more useful recommendation, we look at the actual project exposure together with the façade design, because the same city can contain coastal, sheltered, polluted, high-rise, west-facing and high-wind conditions.
- Location and exposure: city, coastline proximity, rain, salt, dust, pollution, altitude and wind.
- Building conditions: height, orientation, geometry, occupancy and maintenance access.
- Panel intent: module size, colour, finish, coating, fire requirement and façade-system type.
- Engineering inputs: joints, drainage, fixing strategy, substructure and project-specific structural loads.
Illustrative scenarios
How the recommendation changes from one project to another
These hypothetical examples show why ACP for different climates cannot be reduced to a city name. They are not customer case studies or engineering approvals.
Seaside commercial building
- Main risk
Salt deposition, humidity, driven rain and corrosion-sensitive interfaces.
- Prioritise
Validated exterior coating, compatible fasteners/brackets, protected edges, drainage and cleaning access.
- Avoid
Choosing only by colour or assuming the face coating protects every hidden component.
Humid coastal high-rise
- Main risk
Marine exposure plus strong wind pressure/suction and difficult maintenance access.
- Prioritise
Coastal detailing together with project-specific panel, fixing and substructure engineering.
- Avoid
Using a “coastal grade” label as a substitute for high-rise wind design.
Hot inland office façade
- Main risk
Strong UV, high surface temperature and repeated thermal movement.
- Prioritise
Exterior weathering performance, colour/finish review and movement-friendly joints.
- Avoid
Locking panels rigidly or assuming a premium coating prevents movement distortion.
Dusty / arid retail elevation
- Main risk
Dust shelves, wind-blown sand and abrasive cleaning.
- Prioritise
Cleanable geometry, realistic texture/gloss and non-abrasive maintenance.
- Avoid
Complex horizontal features that trap dust without accessible cleaning.
High-rainfall institutional building
- Main risk
Repeated wetting at windows, transitions, parapets and penetrations.
- Prioritise
Drainage paths, flashings, protected interfaces and pre/post monsoon inspection.
- Avoid
Treating exposed sealant as the only water-management strategy.
Industrial-zone façade
- Main risk
Chemical deposits, soot, moisture and aggressive cleaning.
- Prioritise
Pollutant-specific coating/cleaner compatibility and access for inspection.
- Avoid
Approving a cleaning chemical without a sample-panel trial.
Intense west-facing elevation
- Main risk
Strong afternoon solar loading and visible weathering.
- Prioritise
Colour, gloss, coating durability, thermal movement and joint design.
- Avoid
Assuming all elevations on the same building experience the same surface temperature.
Large seasonal temperature range
- Main risk
Summer expansion, winter contraction, monsoon wetting and sealant cycling.
- Prioritise
Balanced coating, full-range movement allowance, drainage and compatible sealants.
- Avoid
Designing joints only for the temperature present on installation day.
Maintenance by exposure
Climate-responsive inspection and cleaning
Maintenance frequency should follow actual deposits and current product/warranty guidance rather than a universal calendar. This is especially important when we specify ACP for different climates.
Hot-dry / dusty
Inspect around periods of heavy dust and clean deposits before they become compacted. Pay attention to horizontal ledges, sealant contamination and dry-rubbing damage.
Warm-humid / monsoon
Pre- and post-monsoon inspection is useful for drainage, sealant, staining, trapped moisture and hidden interfaces.
Coastal / saline
Plan freshwater washing and inspection based on actual salt deposition, especially on sheltered surfaces that receive little rain washing.
Industrial / polluted
Set inspection and cleaning frequency from pollutant type and deposition rate. Use compatible cleaning methods confirmed on a discreet area.
Cold / snow
Inspect before winter and after the freeze/snow season, focusing on water traps, sealants, flashings, fasteners and snow-loaded elements.
Normal urban / temperate
Use routine visual inspection and clean as deposits require, with attention to scratches, joints, sealants, fasteners and drainage.
These are planning principles, not warranty intervals. The final method and frequency should follow the latest Aludecor documentation, coating requirements, project warranty and site conditions.
Project-specific guidance
Tell us what the façade will actually face.
For a useful climate-based discussion, share the city or site, approximate distance from the coast where relevant, building type and height, exterior/interior application, expected salt/pollution/rain exposure, fire requirement and façade-system details.
Frequently asked questions
Questions we are asked about ACP for different climates
Use these answers as preliminary guidance. Final product and façade-system selection should still be verified for the actual project.