Commercial Cladding Refurbishment vs Replacement
There is no universal answer. The correct approach — refurbishment or replacement — depends on the specific condition of your cladding and cannot be determined from ground-level observation, building age or generic guidance alone.
What Is Commercial Cladding Refurbishment?
Cladding refurbishment is the process of restoring and protecting existing commercial cladding systems — without removing the panels. A specialist spray-applied coating is applied over the existing substrate after appropriate preparation, restoring weatherproofing performance, appearance and colour while extending the asset's service life.
Refurbishment addresses coating deterioration — fading, chalking, coating breakdown, surface corrosion, cut edge corrosion and weathering — where the structural element beneath (the panel, its fixings, its substrate) remains sound. It is not a solution for structural failure, panel perforation or regulatory compliance requirements that mandate replacement.
The primary systems used for commercial cladding refurbishment through Forti Nova are Prokol TopSpray 35 — for appearance-led projects with RAL colour requirements and long-term warranty pathways — and Liquid Rubber® SprayGrade — for large-area waterproofing and refurbishment on mixed substrate buildings.
What Is Commercial Cladding Replacement?
Cladding replacement is a full strip-and-reinstall programme. Existing panels are removed — requiring scaffold, access equipment and waste handling — and a new cladding system is installed. Replacement is appropriate where the existing substrate has failed beyond what refurbishment can address, where regulatory requirements mandate a compliant replacement system, or where the building is being substantially redesigned.
Replacement involves considerably greater programme complexity than refurbishment: scaffolding for removal, new panel supply, installation labour, waste disposal and making good around penetrations and interfaces. Buildings may need to be partially or fully managed during the removal phase, creating operational considerations for occupied properties.
Replacement is the correct route in a specific and limited set of circumstances. The default assumption that deteriorated cladding requires replacement is frequently incorrect — many buildings with visually deteriorated cladding have structurally sound substrates that are appropriate for refurbishment. A site assessment establishes which route is technically correct.
When Refurbishment May Be Appropriate
The following conditions are commonly associated with refurbishment being technically viable. A site assessment is required to confirm suitability in every case.
Faded or discoloured coatings
UV-driven colour loss is one of the most common triggers for cladding refurbishment. Where the coating has faded but the substrate beneath remains sound, this is typically a low-complexity, high-value refurbishment opportunity.
Faded cladding guideChalking coatings
Powdery binder breakdown on the coating surface indicates UV degradation. Chalking represents one of the optimal intervention points — the substrate is still protected and preparation requirements are manageable.
Chalking coatings guideFailed or delaminating coatings
Where a previous coating system has delaminated, blistered or is flaking, targeted preparation and over-coating may be appropriate where adhesion to the substrate is confirmed and the panel itself remains structurally sound.
Failed coatings guideCut edge corrosion
Active corrosion at panel overlaps and cut edges is treatable within a refurbishment specification using ProFix compound before the main coating. Where cut edge corrosion has not caused perforation, refurbishment remains viable.
Cut edge corrosion guideSurface weathering and aged coatings
Weathered, aged or degraded cladding surfaces that have lost waterproofing performance but retain structural integrity are candidates for spray-applied refurbishment. The primary requirement is that the substrate beneath the coating system remains sound.
Operational continuity is a priority
Spray-applied refurbishment is carried out externally. Most occupied commercial buildings — warehouses, manufacturing facilities, distribution centres — remain fully operational during the programme, which is often a deciding factor for asset managers.
Asset life extension is the objective
Where the building owner's strategy is to extend the cladding asset to the next major investment cycle — rather than commit full replacement capex now — refurbishment supports this approach where the substrate condition permits.
When Replacement May Be Appropriate
There are specific conditions where replacement is the technically appropriate course. These are not arbitrary — they represent situations where refurbishment is not technically viable. A site assessment establishes which conditions apply.
Structural perforation of cladding panels
Where profiled steel sheets have perforated from corrosion — at cut edges, fixings or through the sheet face — structural weathertightness has been compromised. Coating cannot seal perforations or restore structural integrity. Affected panels must be replaced before any coating programme.
Extensive substrate deterioration across significant areas
Where structural deterioration is so widespread that preparation costs approach replacement costs, or where the scope of section replacement required makes a full coating programme uneconomical. The threshold is established at assessment.
Fire safety compliance requirements
Where building regulations require the cladding to meet specific fire performance standards and the existing system cannot comply, replacement with a compliant system is required. Coating the existing cladding surface does not change the underlying fire performance of the panel system.
Thermal performance upgrade required
Where energy performance improvements mandate better insulation, the existing cladding system must be replaced with an insulated system. Spray-applied coating does not change thermal performance.
Building redesign or substantial reconfiguration
Where the building is being extended, substantially altered, or reconfigured, replacement of the cladding system as part of the construction programme is often the appropriate route.
Previous refurbishment has failed and substrate is unsuitable
Where a previous coating programme has failed and assessment reveals that the substrate is no longer suitable for further over-coating, replacement of the affected panels may be required before a new refurbishment programme can proceed.
No blanket statement can be made about when replacement is required. Every project must be assessed on its specific conditions by a qualified contractor.
Refurbishment vs Replacement: Decision Framework
This table is a general guide only. It does not replace a site assessment — which is the only reliable basis for determining the correct approach for a specific building.
| Factor | Refurbishment | Replacement |
|---|---|---|
| Panel structural condition | Sound, no perforation | Compromised, perforated, failed |
| Coating deterioration mode | Fading, chalking, surface corrosion | Structural corrosion, perforation |
| Water ingress cause | Sealant / joint degradation | Structural defect, panel failure |
| Cut edge corrosion | Early to moderate, treatable | Advanced, perforated sheets |
| Fire safety compliance | Not required | Required by regulation |
| Thermal performance | No upgrade needed | Upgrade required |
| Operational disruption | Minimal — external works | Higher — strip and install |
| Programme length | Shorter | Longer |
| Building plans | Continuing use, asset extension | Major reconfiguration or redesign |
| Appearance outcome | Colour restoration, RAL matching | New system, new colour |
| Assessment required | Yes — always | Yes — always |
This framework is indicative. Suitability is determined by site assessment — not by this table alone.
Cost Considerations
Every building is different. There is no reliable published cost per m² for cladding refurbishment or replacement that applies universally — any figure provided without a site-specific assessment should be treated with significant caution.
Refurbishment cost is driven by total elevation area, building height, access method (MEWP or scaffold), substrate type and condition, preparation scope, system specification and warranty requirements. Replacement involves these elements plus panel removal, skip hire, hazardous waste disposal (where applicable), new panel supply and installation — all of which typically add substantially to total project cost.
Where the substrate condition supports it, refurbishment can be significantly more cost-effective than replacement on a like-for-like basis. However, the correct comparison requires a site assessment and specification from a qualified contractor — not a generic per-m² benchmark.
Which System May Be Appropriate?
System selection is confirmed by site assessment. The following systems are available through the Forti Nova approved applicator network for commercial cladding refurbishment programmes.
Premium spray-applied coating for commercial roof and cladding refurbishment. RAL colour capability with broad colour options. UV-resistant. Warranty pathway up to 25 years subject to specification and manufacturer approval. Suited to projects where appearance restoration, corporate colour accuracy and long-term colour retention are specification priorities.
Two-component, water-based, VOC-free spray-applied waterproofing and protection membrane. Compatible with steel, aluminium, composite panel, fibre cement and existing coated surfaces. 15-year product warranty. Suited to large-area commercial cladding refurbishment where waterproofing performance and substrate coverage efficiency are priorities.
Emergency waterproof repair compound used for localised detailing, cut edge treatment, penetrations, fixings and joint repair. Applied during the preparation phase prior to the primary coating system — not as a standalone cladding refurbishment solution.
KIWA-certified hot spray-applied 100% pure polyurea roofing and waterproofing system from Prokol Protective Coatings. BRoof (t4) and BRoof (t2) certified. Specified where a seamless pure polyurea membrane is the technical requirement — not a primary commercial cladding refurbishment system.
Why Building Owners Choose Cladding Refurbishment
Improved Building Appearance
Faded, stained or discoloured cladding reduces commercial presentation. Refurbishment restores colour, uniformity and visual quality — important for occupiers, investors and asset managers.
Operational Continuity
Spray application is carried out externally. Most occupied commercial buildings remain fully operational during the programme — no evacuation, no strip-out, no extended site operations inside the building.
Reduced Waste Generation
Refurbishment avoids the waste stream associated with cladding strip-out — no panels to dispose of, no skips, no waste management costs. A more sustainable approach where the substrate remains suitable.
Colour Change & Rebranding
Where corporate colours have changed or brand guidelines require an updated facade colour, spray-applied systems such as TopSpray 35 allow accurate RAL recoating without panel replacement.
Asset Life Extension
A correctly specified and applied coating system extends the service life of existing cladding, deferring capital expenditure and allowing assets to reach their next planned investment cycle.
Tenant Retention & Commercial Presentation
Building appearance is a factor in occupier satisfaction and tenant retention. Maintained, well-presented facades support the commercial value of the property and the occupier's confidence in the building.
Portfolio Standardisation
Multi-building portfolios benefit from a consistent refurbishment specification — delivering uniform appearance and performance standards across buildings of different ages and conditions.
Colour Restoration
Where UV fading has reduced colour uniformity across a facade, refurbishment restores consistent colour across the entire elevation — matching original RAL specifications or moving to a new standard.
Frequently Asked Questions
How to Progress a Cladding Project
Assessment comes first. No system should be specified and no contractor engaged without a site assessment confirming the condition of the substrate, the appropriate scope of work, and whether refurbishment or replacement is technically correct for the specific building.
Specification comes second. Following assessment, the appropriate system is specified based on site findings, substrate type, project objectives and warranty requirements. Forti Nova's technical team supports system selection and specification for refurbishment programmes.
Contractor introduction comes third. Forti Nova works with a small, carefully selected network of trained applicators capable of delivering commercial cladding refurbishment programmes. Approved applicators are connected to projects after assessment — not before — ensuring the right contractor is matched to the right project.
Start With a Site Assessment
Refurbishment or replacement — the right answer depends on your building. A site assessment by a Forti Nova approved contractor is the only reliable basis for making that decision.