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Rainscreen cladding, brick slips and render are three different ways to replace an exterior wall finish, and the right choice depends on the building, fire requirements, wall condition, appearance and budget. For many low-rise homes, render is usually the cheaper first-cost option; a rainscreen is useful where drainage, a replaceable outer panel or a designed facade system matters; brick slips preserve a brick look but must be specified either as an appropriate stuck-on facing or as part of a complete tested system.
There is no reliable single lifespan or like-for-like cost that crowns one option for every building. The figures below distinguish householder prices from commercial envelope rates and occupied-building fire-safety remediation costs. The fire discussion is specific to England; rules elsewhere in the UK differ.
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At a glance
| Name | Best for | Key spec | Price | Checked |
|---|---|---|---|---|
| Rainscreen cladding | Exposed walls, designed drainage, or a replaceable panel finish | Outer panels sit off the backing wall with a ventilated cavity, typically around 25–50 mm | Householder installed-panel guides: about £60–£350/m² depending on material; specified commercial systems can be much higher | November 2026 |
| Brick slips | Keeping a brick appearance without a full new masonry leaf | May be adhesive-fixed, or mechanically retained as part of a rainscreen; these are different constructions | £20–£60/m² for slips alone in one 2025 guide; not an installed mechanical system rate | November 2026 |
| Render | Continuous colour and a generally lower first cost on a low-rise house | Wet-applied finish bonded to a prepared substrate; external insulation can be added behind it | About £50–£110/m² for thin-coat render in published 2025–2026 guides; scope varies | November 2026 |
Prices are indicative UK published guide figures, not comparable tenders. Rainscreen house prices vary by material and may not include the full insulated substructure; slip material prices exclude a complete system. See the cost sections for source and scope.
What is actually being compared?
The terms describe different assemblies, not just different surface appearances. That distinction affects how rain is managed, what can be repaired, what the wall weighs and how fire requirements apply.
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Rainscreen cladding is an outer layer of panels fixed in front of the wall, leaving a cavity that drains and dries water that gets past the face. A typical build-up includes the backing wall, insulation, a ventilated cavity of roughly 25–50 mm and outer panels. Open or baffled joints can help the cavity equalise pressure as well as drain and dry. The panels might be aluminium, terracotta or ceramic, fibre cement, stone, or brick slips; other materials are possible where the system’s fire class permits. BDF Architectural’s rainscreen guide explains the assembly and its component layers.
Render is a coating applied wet and bonded to the prepared wall, without a designed drainage cavity behind the finish. Common types include silicone, acrylic, mineral or cement-based render, and monocouche, a through-coloured single-coat finish. Render can conceal a patchy elevation and can be applied over external wall insulation, but the substrate, movement joints, sills, copings and seals must all be suitable. A crack does not automatically mean the finish has failed; the concern is that water behind a bonded coat has no cavity to drain through.
Brick slips are thin brick-like facings, not a structural brick leaf. They can be fixed with adhesive to a suitable wall, or retained mechanically as the face of a rainscreen. A slip tile stuck to a wall and a fully engineered, drained brick-slip rainscreen are not interchangeable just because both look like brick. The retention method affects the support structure, dead load, thermal bridges, fire performance and service life. The Facade Tectonics Institute’s comparison of brick-cladding retention methods describes a broad range of systems and finds no single typology dominates every measure.
Which option suits the building and its walls?
Start with the wall and the job, not a favourite finish. A house refresh, a retrofit intended to improve insulation, and the replacement of unsafe cladding on an occupied block have different technical requirements and cost bases.
- Choose render as a candidate for a low-rise home where a seamless colour is wanted, the existing wall is stable, first cost matters, or the project includes external insulation. Older solid walls may need a breathable lime or mineral approach rather than a dense cement or acrylic coat; confirm compatibility with the wall and its exposure.
- Consider a rainscreen where the elevation is exposed to weather, the backing wall needs a drained and drying layer, the project requires particular fire-rated materials, or individual damaged panels should be replaceable without recoating the whole elevation. It can also accommodate external insulation, but the brackets and anchors must be included in the design.
- Choose brick slips when the appearance is decisive and a full new brick leaf is not wanted. They can retrofit over sound masonry without new foundations, but the fixing method and complete system—not the clay face alone—determine whether the proposal is suitable.
Full brick remains a distinct option: it is heavier and can require structural support, but a full masonry leaf is not the same construction as slips. For a replacement brief, ask whether the desired result is merely a brick appearance or a specified facade assembly with a particular drainage, structural and fire strategy.
How do rain, insulation and maintenance differ?
Rainscreen manages water by shedding most rain at the panel face and providing a cavity to drain and dry what gets behind it. Render depends more directly on a continuous bonded coat and sound junctions. Adhesive-fixed slips have no designed cavity unless they are incorporated into a rainscreen build-up.
A cavity is not a guarantee against damp or condensation. Performance depends on the full wall design, including indoor humidity, airtightness, vapour control, insulation position, thermal bridges and workmanship. A cavity can support drying, but the backing wall and junctions still need to be designed correctly.
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Render itself adds negligible insulation; the thermal benefit comes from insulation behind the finish. Both a rendered external-wall-insulation system and an insulated rainscreen can put insulation outside the structure. Rainscreen brackets and other supports create thermal bridges, so they belong in the U-value calculation. Isolator pads can reduce bracket heat loss but do not eliminate it. England’s Approved Document L gives a 0.26 W/m²K limiting U-value for new walls, while many projects target lower; that figure should not be treated as the automatic legal target for every existing-house replacement.
Service-life estimates are guide claims, not universal guarantees or British Standard lifetimes. Published render estimates range from about 15–25 years in one generalised comparison to 20–30 years for correctly applied render in another; traditional sand-and-cement render is placed at the shorter end, while thin-coat silicone is commonly described in the 20–30-year range. Recoating or repainting may be needed, often on a product- and exposure-dependent interval. A render patch can be difficult to make invisible.
Vulcan Cladding Systems describes powder-coated aluminium rainscreen as having an expected life of 40 years or more, with panel replacement possible and periodic washing needed; its generalised table gives fibre cement 25–30 years, timber 15–25, composite 20–30 and brick-slip systems 30-plus. These are not promises for every product or installation. BDF advises following the coating manufacturer’s maintenance interval and checking vents, fixings, sealants and copings; warranties may depend on cleaning and maintenance. For any system, ask for the manufacturer’s stated life, maintenance schedule and warranty conditions rather than relying on a category-wide number.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Do not assume a rainscreen automatically costs less to maintain or lasts longer than render. Rainscreen panels may be individually replaceable, but the assembly has more interfaces and components to inspect. Render typically has a lower initial cost but may need more upkeep. The QBM facade comparison cautions against treating a maintenance advantage as automatic. A Facade Tectonics Institute abstract also reports qualitative trade-offs among service life, thermal performance, weight and embodied carbon; its extract does not provide numerical results that would support a percentage comparison.
What do cladding, slips and render cost?
For a house, render is generally cheaper to install than cladding, according to Checkatrade’s August 2026 guide. Yet a price per square metre only helps when the scope is clear: whether it includes insulation, battens or rails, membranes, trims, scaffolding, access and preparation can change the total substantially.
Householder cladding guide rates: Checkatrade’s August 2026 figures are supply-and-install averages and ranges for common materials. The guide says its prices were verified by CIOB and RICS estimators.
| Material or item | Published rate |
|---|---|
| uPVC cladding | Average £80/m²; £60–£100/m² range |
| Fibre-cement cladding | Average £80/m²; £70–£90/m² range |
| Larch cladding | Average £115/m²; £100–£130/m² range |
| Cedar cladding | Average £165/m²; £150–£180/m² range |
| Aluminium panels | Average £215/m²; £200–£230/m² range |
| Zinc cladding | Average £325/m²; £300–£350/m² range |
| Scaffolding | Average £20/m², or about £1,000 for a typical job; £500–£1,500 range |
Rates from Checkatrade’s house cladding cost guide, updated August 2026; checked November 2026. Its guide estimates about £8,000 including labour for an average two-storey house and about £5,000 for a small bungalow. These are guide estimates, not quotes for a particular building.
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For render, Alb Render’s October 2026 guide gives about £50–£95/m² for pre-coloured silicone render. Brick Makeover’s November 2025 consumer guide lists thin-coat coloured render at £70–£110/m² and external wall insulation plus thin-coat render at £100–£160/m². The different ranges reflect different guides and scopes; they are not a single standard rate. A bagged silicone or monocouche render is a material in a complete system, not proof of the installed cost or fire class. Check the system data sheet for substrate compatibility and fire classification.
Brick Makeover’s 2025 guide puts brick-slip materials at £20–£60/m², adhesive and grout at another £10–£20/m², and professional installation at £25–£50/m². The material figure is not the cost of a mechanically retained rainscreen. If buying exterior brick slips, match the product’s exterior rating and frost exposure to the site, and confirm that the selected fixing method is appropriate.
Do not compare these house rates directly with commercial facade specifications. Gleeds’ UK Q1 2025 supply-and-install rates, published by the RIBA Journal, include more complete envelope assemblies: £60–£80/m² for 25 mm softwood boarding on battens; £140–£160/m² for a specified cedar assembly with membrane, backing, insulation and steel frame; £325–£425/m² for an insulated high-pressure-laminate rainscreen with aluminium subframe; and £450–£650/m² for terracotta tile cladding including insulation and support. Brick-clad precast panels are listed at £390–£480/m². These are specification rates for new envelope work, not DIY prices or occupied-building remediation costs. See Gleeds’ Q1 2025 envelope rates; checked November 2026.
For contrast, the government’s 2025 analysis of non-ACM cladding remediation on occupied residential buildings in England reports a mean £1,843/m² of cladding remediated when outliers are excluded, with an expected range of £743–£2,943/m² in Q2 2025 prices. The mean is £2,077/m² with outliers included. These funding-approval figures cover a different job: resident-occupied buildings, surveys, access, multiple trades and other remediation costs. The department excludes VAT, contractor contingencies and variations, and warns that the numbers are not readily comparable with other construction sectors. They are not a house-cladding quote. Read the MHCLG remediation cost analysis.
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Fire requirements depend on the building’s height and use, and on every relevant layer in the external wall—not just the visible panel. Get project-specific advice from a fire engineer and building control; do not treat a material label or a general manufacturer table as approval for a particular building.
Under Regulation 7(2), materials that become part of the external wall of a relevant building must achieve European class A2-s1,d0 or A1. Broadly, this means a building with a storey at least 18 m above ground that contains flats, student accommodation, a hospital, care home, dormitory, boarding school, hotel, hostel or boarding house. There are limited exemptions, including window frames, glass and seals. The 18 m rule is not a blanket statement that every building over 11 m is legally subject to the same ban.
For other buildings, Approved Document B provides guidance, including stricter recommendations for residential buildings with a storey more than 11 m above ground. For certain other buildings at 18 m or above, a whole-wall BS 8414 test assessed against BR 135 may be a route under the guidance; it is not a way around the A1/A2 requirement for relevant buildings. Cavity barriers are required where a cavity exists. Regulation 7(1A) separately bans metal composite panels with an unmodified polyethylene core from external walls of buildings of any height, including re-cladding. Higher-risk buildings—broadly, at least 18 m or seven storeys and with at least two residential units—require Building Safety Regulator building-control approval before work starts.
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Materials must be assessed as a system. Mineral-wool insulation is typically A1; PIR and phenolic boards generally do not reach A2-s1,d0. Sheathing, carrier, insulation, panels and cavity barriers may all matter. Membranes have a limited exemption from the material ban, but Approved Document B expects membranes in external walls above ground to reach at least B-s3,d0, and membranes behind open joints need to tolerate permanent UV exposure. Render classifications are product- and system-specific: some standard acrylic renders are reported as Class B or C, so do not infer A1 or A2 from the finish name or a bag’s colour.
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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsProduct examples illustrate why the full assembly matters, but are not endorsements or substitutes for a project fire strategy. Architecture Magazine reported Eurobrick’s A-Clad as an A1-rated, non-combustible brick-slip rainscreen system; it also says installer training is a prerequisite. The report is a manufacturer claim reported by a trade magazine, and this article does not independently establish the system’s project-specific suitability. Vulcan describes its VulcaLap aluminium plank as A2-s1,d0 and reports wind and impact testing; consult the manufacturer’s literature and the fire strategy for the precise build-up. A clay slip does not make an adhesive assembly A1 by itself. The same is true of the other components and fixings.
These thresholds are for England. Do not apply them automatically in Scotland, Wales or Northern Ireland; local regulations and guidance need to be checked.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can you install cladding over existing brick?
Yes, if the wall is sound and the fixings can connect to sound masonry, but cladding should not be used to hide defects that need repair. Check for rising damp, spalled brick, loose mortar and other movement or moisture problems first. The wall must be assessed before it is concealed.
For typical house cladding over brick, the frame creates a drained, ventilated cavity; boards are not fixed directly to brick. TimberSol recommends a breather membrane, keeping ventilation open at the top and bottom, using insect mesh and keeping the cladding at least 200 mm above ground. Battens, membrane, corrosion-resistant fixings, trims and any cavity insulation need separate budget lines. Battens must suit board orientation: horizontal boards use vertical battens, while vertical boards need horizontal battens over vertical counter-battens so water can drain. Fixings must reach sound masonry, and work on brick veneer must not compromise cavity ties.
Those are house-cladding details, not a specification for every rainscreen. A rainscreen needs its own designed subframe, anchors, cavity barriers and interfaces. In either case, installation can conceal important work, so agree how it will be inspected before the outer finish goes on. An experienced installer is usually the sensible default for a complex cladding job; mistakes can affect the building and may have insurance implications.
Render over brick also depends on a clean, stable, repaired substrate. The render system needs appropriate movement joints and weathering details, and wet-applied coatings need suitable curing conditions. If the main aim is a better thermal performance as well as a new appearance, ask for an external-wall-insulation and render proposal rather than assuming the finish alone will improve insulation.
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Do you need planning permission for a house re-clad?
Many ordinary cosmetic house cladding projects are treated as permitted development, but that is not a safe assumption for every property or design. Listed buildings and conservation areas may have restrictions, and a significant change can require permission. Trade guides are not a substitute for the planning rules or a decision from the local planning authority. Confirm the position with that authority before ordering materials or starting work.
Is this a house upgrade or unsafe-cladding remediation?
If the work addresses life-safety fire risks on an occupied residential building in England, it is not the same market as a homeowner refreshing an exterior. The government’s 2025 update says buildings above 11 m have a pathway to address unsafe cladding through taxpayer-funded or developer-funded routes. The Cladding Safety Scheme is administered by Homes England; new applications use the Building Remediation Hub, and only the organisation or person legally responsible for external repair—the Responsible Entity—can accept a grant.
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The scheme covers eligible life-safety fire risks associated with cladding, not ordinary cosmetic work. A competent fire risk assessor may determine that a building with brick or masonry walls has sufficiently low risk that a Fire Risk Appraisal of External Walls (FRAEW) is not needed. Homes England’s guidance also says some masonry or concrete walls, and some double-skin masonry walls with combustible material limited to cavity insulation, may not need a FRAEW. An ordinary brick cavity house is therefore not automatically a scheme candidate. The Homes England Cladding Safety Scheme overview explains eligibility and the Responsible Entity’s role.
Where a developer has signed the remediation contract and agreed to fix a building, Homes England will not fund that building for the same work. The Building Safety Act 2022 also protects certain qualifying leaseholders from costs for cladding and external-wall-system work that poses a risk to life. Residents and leaseholders should establish which route applies to their building rather than using domestic cladding price guides to estimate a remediation bill.
Frequently Asked Questions
Can a rainscreen cavity stop condensation by itself?
No. The cavity can help drain and dry the outer wall, but condensation risk depends on the whole wall build-up, indoor humidity, airtightness, vapour control, insulation position and workmanship. A project design should assess these together rather than treating ventilation behind the panels as a complete moisture strategy.
What should I ask for in a cladding or render quote?
Ask the contractor to state exactly what is included: wall preparation, insulation, membrane, rails or battens, fixings, cavity barriers where required, trims, sills, scaffold, waste removal and making good. Request the proposed system data sheets, maintenance requirements and warranty conditions, and have comparable quotes use the same wall area and scope.
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Can I use a render or cladding system in Scotland, Wales or Northern Ireland based on these fire rules?
Not without checking the rules for that nation. The height and use thresholds described here are for England; the devolved administrations have their own building regulations and guidance. Ask the relevant local building-control authority and project fire professional to confirm the applicable requirements.
Does the Cladding Safety Scheme pay for a cosmetic house makeover?
No. It addresses eligible life-safety fire risks associated with cladding on residential buildings in England, and the legally responsible external-repair entity must accept any grant. It is not a general grant for replacing weathered finishes or changing a house’s appearance.
